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25331250425 = 5213477123357
BaseRepresentation
bin10111100101110111…
…000011010011111001
32102101101012211222012
4113211313003103321
5403334300003200
615345332335305
71554506035025
oct274567032371
972341184865
1025331250425
11a819915408
124aab474535
1325090564a0
141324373385
159d3d05a35
hex5e5dc34f9

25331250425 has 48 divisors (see below), whose sum is σ = 35034757632. Its totient is φ = 18049516800.

The previous prime is 25331250419. The next prime is 25331250473. The reversal of 25331250425 is 52405213352.

It is not a de Polignac number, because 25331250425 - 24 = 25331250409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25331250391 and 25331250400.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1072847 + ... + 1096203.

It is an arithmetic number, because the mean of its divisors is an integer number (729890784).

Almost surely, 225331250425 is an apocalyptic number.

25331250425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25331250425 is a deficient number, since it is larger than the sum of its proper divisors (9703507207).

25331250425 is a wasteful number, since it uses less digits than its factorization.

25331250425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23498 (or 23493 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 25331250425 its reverse (52405213352), we get a palindrome (77736463777).

The spelling of 25331250425 in words is "twenty-five billion, three hundred thirty-one million, two hundred fifty thousand, four hundred twenty-five".

Divisors: 1 5 13 25 47 65 71 235 325 355 611 923 1175 1775 3055 3337 4615 15275 16685 23075 23357 43381 83425 116785 216905 303641 583925 1084525 1097779 1518205 1658347 5488895 7591025 8291735 14271127 21558511 27444475 41458675 71355635 77942309 107792555 356778175 389711545 538962775 1013250017 1948557725 5066250085 25331250425