25256595232 has 72 divisors (see below), whose sum is σ = 54698112000. Its totient is φ = 11471264640.

The previous prime is 25256595209. The next prime is 25256595263. The reversal of 25256595232 is 23259565252.

It is a super-3 number, since 3×25256595232³ (a number of 32 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9287569 + ... + 9290287.

It is an arithmetic number, because the mean of its divisors is an integer number (759696000).

Almost surely, 2^25256595232 is an apocalyptic number.

25256595232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25256595232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27349056000).

25256595232 is an abundant number, since it is smaller than the sum of its proper divisors (29441516768).

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

25256595232 is a wasteful number, since it uses less digits than its factorization.

25256595232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5150 (or 5131 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 46.

The spelling of 25256595232 in words is "twenty-five billion, two hundred fifty-six million, five hundred ninety-five thousand, two hundred thirty-two".