25900259256 has 48 divisors (see below), whose sum is σ = 71107461360. Its totient is φ = 8515152000.

The previous prime is 25900259251. The next prime is 25900259269. The reversal of 25900259256 is 65295200952.

25900259256 is a `hidden beast` number, since 2 + 5 + 9 + 0 + 0 + 2 + 592 + 56 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25900259251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2458620 + ... + 2469131.

It is an arithmetic number, because the mean of its divisors is an integer number (1481405445).

Almost surely, 2^25900259256 is an apocalyptic number.

It is an amenable number.

25900259256 is an abundant number, since it is smaller than the sum of its proper divisors (45207202104).

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

25900259256 is a wasteful number, since it uses less digits than its factorization.

25900259256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4927836 (or 4927829 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 45.

It can be divided in two parts, 25900 and 259256, that added together give a square (285156 = 534²).

The spelling of 25900259256 in words is "twenty-five billion, nine hundred million, two hundred fifty-nine thousand, two hundred fifty-six".