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25256025132 = 22313161897597
BaseRepresentation
bin10111100001011000…
…000101110000101100
32102012010200000021020
4113201120011300230
5403211020301012
615334044134140
71552603446222
oct274130056054
972163600236
1025256025132
11a790405548
124a8a237350
1324c65a8490
141318390b12
159cc3e6a8c
hex5e1605c2c

25256025132 has 24 divisors (see below), whose sum is σ = 63463858416. Its totient is φ = 7771084608.

The previous prime is 25256025089. The next prime is 25256025143. The reversal of 25256025132 is 23152065252.

It is a junction number, because it is equal to n+sod(n) for n = 25256025093 and 25256025102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80948643 + ... + 80948954.

It is an arithmetic number, because the mean of its divisors is an integer number (2644327434).

Almost surely, 225256025132 is an apocalyptic number.

It is an amenable number.

25256025132 is an abundant number, since it is smaller than the sum of its proper divisors (38207833284).

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

25256025132 is a wasteful number, since it uses less digits than its factorization.

25256025132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161897617 (or 161897615 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 25256025132 in words is "twenty-five billion, two hundred fifty-six million, twenty-five thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 161897597 323795194 485692791 647590388 971385582 1942771164 2104668761 4209337522 6314006283 8418675044 12628012566 25256025132