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25252802753 = 613131322621
BaseRepresentation
bin10111100001001011…
…110011000011000001
32102011220121021222212
4113201023303003001
5403204204142003
615333451111505
71552534165433
oct274113630301
972156537885
1025252802753
11a789604522
124a89142595
1324c5a1a849
141317b92653
159cbeabdd8
hex5e12f30c1

25252802753 has 8 divisors (see below), whose sum is σ = 25748805096. Its totient is φ = 24759446400.

The previous prime is 25252802719. The next prime is 25252802759. The reversal of 25252802753 is 35720825252.

It can be written as a sum of positive squares in 4 ways, for example, as 368371249 + 24884431504 = 19193^2 + 157748^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25252802753 - 210 = 25252801729 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25252802753.

It is not an unprimeable number, because it can be changed into a prime (25252802759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 642218 + ... + 680403.

It is an arithmetic number, because the mean of its divisors is an integer number (3218600637).

Almost surely, 225252802753 is an apocalyptic number.

It is an amenable number.

25252802753 is a deficient number, since it is larger than the sum of its proper divisors (496002343).

25252802753 is a wasteful number, since it uses less digits than its factorization.

25252802753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322995.

The product of its (nonzero) digits is 336000, while the sum is 41.

The spelling of 25252802753 in words is "twenty-five billion, two hundred fifty-two million, eight hundred two thousand, seven hundred fifty-three".

Divisors: 1 61 313 19093 1322621 80679881 413980373 25252802753