25320025050 has 24 divisors (see below), whose sum is σ = 62793662496. Its totient is φ = 6752006640.

The previous prime is 25320024991. The next prime is 25320025079. The reversal of 25320025050 is 5052002352.

It is a super-2 number, since 2×25320025050² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25320025050.

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, 84399934 + ... + 84400233.

It is an arithmetic number, because the mean of its divisors is an integer number (2616402604).

Almost surely, 2^25320025050 is an apocalyptic number.

25320025050 is an abundant number, since it is smaller than the sum of its proper divisors (37473637446).

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

25320025050 is a wasteful number, since it uses less digits than its factorization.

25320025050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168800182 (or 168800177 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

The spelling of 25320025050 in words is "twenty-five billion, three hundred twenty million, twenty-five thousand, fifty".