25572017000 has 64 divisors (see below), whose sum is σ = 59958662400. Its totient is φ = 10208270400.

The previous prime is 25572016997. The next prime is 25572017017. The reversal of 25572017000 is 71027552.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 477581 + ... + 528419.

It is an arithmetic number, because the mean of its divisors is an integer number (936854100).

Almost surely, 2^25572017000 is an apocalyptic number.

25572017000 is a gapful number since it is divisible by the number (20) 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 25572017000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29979331200).

25572017000 is an abundant number, since it is smaller than the sum of its proper divisors (34386645400).

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

25572017000 is a wasteful number, since it uses less digits than its factorization.

25572017000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51363 (or 51349 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 29.

The spelling of 25572017000 in words is "twenty-five billion, five hundred seventy-two million, seventeen thousand".