25260556552 has 32 divisors (see below), whose sum is σ = 59050653120. Its totient is φ = 9841775040.

The previous prime is 25260556549. The next prime is 25260556579. The reversal of 25260556552 is 25565506252.

It is a junction number, because it is equal to n+sod(n) for n = 25260556499 and 25260556508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20503083 + ... + 20504314.

It is an arithmetic number, because the mean of its divisors is an integer number (1845332910).

Almost surely, 2^25260556552 is an apocalyptic number.

25260556552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25260556552 is an abundant number, since it is smaller than the sum of its proper divisors (33790096568).

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

25260556552 is a wasteful number, since it uses less digits than its factorization.

25260556552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41007421 (or 41007417 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 43.

The spelling of 25260556552 in words is "twenty-five billion, two hundred sixty million, five hundred fifty-six thousand, five hundred fifty-two".