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25755506696 = 2319433940561
BaseRepresentation
bin10111111111001001…
…011101100000001000
32110110221112022011102
4113333021131200020
5410221402203241
615455405520532
71601150123543
oct277711354010
973427468142
1025755506696
11aa17348427
124ba9573148
132575c0b5ba
14136484d85a
15a0b1ab39b
hex5ff25d808

25755506696 has 32 divisors (see below), whose sum is σ = 52015418400. Its totient is φ = 11916253440.

The previous prime is 25755506659. The next prime is 25755506701. The reversal of 25755506696 is 69660555752.

It is a super-2 number, since 2×257555066962 (a number of 22 digits) contains 22 as substring.

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, 1963745 + ... + 1976816.

It is an arithmetic number, because the mean of its divisors is an integer number (1625481825).

Almost surely, 225755506696 is an apocalyptic number.

It is an amenable number.

25755506696 is an abundant number, since it is smaller than the sum of its proper divisors (26259911704).

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

25755506696 is a wasteful number, since it uses less digits than its factorization.

25755506696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3940629 (or 3940625 counting only the distinct ones).

The product of its (nonzero) digits is 17010000, while the sum is 56.

The spelling of 25755506696 in words is "twenty-five billion, seven hundred fifty-five million, five hundred six thousand, six hundred ninety-six".

Divisors: 1 2 4 8 19 38 43 76 86 152 172 344 817 1634 3268 6536 3940561 7881122 15762244 31524488 74870659 149741318 169444123 299482636 338888246 598965272 677776492 1355552984 3219438337 6438876674 12877753348 25755506696