25252552800 has 108 divisors (see below), whose sum is σ = 89046839700. Its totient is φ = 6734012160.

The previous prime is 25252552769. The next prime is 25252552823. The reversal of 25252552800 is 825525252.

25252552800 is a `hidden beast` number, since 2 + 5 + 2 + 525 + 52 + 80 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1746450 + ... + 1760849.

It is an arithmetic number, because the mean of its divisors is an integer number (824507775).

Almost surely, 2^25252552800 is an apocalyptic number.

25252552800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25252552800 is an abundant number, since it is smaller than the sum of its proper divisors (63794286900).

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

25252552800 is a wasteful number, since it uses less digits than its factorization.

25252552800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3507325 (or 3507309 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 36.

The spelling of 25252552800 in words is "twenty-five billion, two hundred fifty-two million, five hundred fifty-two thousand, eight hundred".