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25148885056 = 264324612
BaseRepresentation
bin10111011010111111…
…011000100001000000
32101220200001201201021
4113122333120201000
5403001103310211
615315255515224
71550132665411
oct273277304100
971820051637
1025148885056
11a735987629
124a5a388b14
1324aa334a99
141308061808
159c2cd1771
hex5dafd8840

25148885056 has 63 divisors (see below), whose sum is σ = 51203456013. Its totient is φ = 12255371520.

The previous prime is 25148885029. The next prime is 25148885071. The reversal of 25148885056 is 65058884152.

The square root of 25148885056 is 158584.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 8061166656 + 17087718400 = 89784^2 + 130720^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25148884994 and 25148885012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 54552666 + ... + 54553126.

Almost surely, 225148885056 is an apocalyptic number.

25148885056 is the 158584-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25148885056

25148885056 is an abundant number, since it is smaller than the sum of its proper divisors (26054570957).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25148885056 is an frugal number, since it uses more digits than its factorization.

25148885056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020 (or 506 counting only the distinct ones).

The product of its (nonzero) digits is 3072000, while the sum is 52.

The spelling of 25148885056 in words is "twenty-five billion, one hundred forty-eight million, eight hundred eighty-five thousand, fifty-six".

Divisors: 1 2 4 8 16 32 43 64 86 172 344 461 688 922 1376 1844 1849 2752 3688 3698 7376 7396 14752 14792 19823 29504 29584 39646 59168 79292 118336 158584 212521 317168 425042 634336 850084 852389 1268672 1700168 1704778 3400336 3409556 6800672 6819112 9138403 13601344 13638224 18276806 27276448 36553612 54552896 73107224 146214448 292428896 392951329 584857792 785902658 1571805316 3143610632 6287221264 12574442528 25148885056