25500025050 has 48 divisors (see below), whose sum is σ = 63251889120. Its totient is φ = 6798735040.

The previous prime is 25500025049. The next prime is 25500025069. The reversal of 25500025050 is 5052000552.

It is a self number, because there is not a number n which added to its sum of digits gives 25500025050.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1007956 + ... + 1032944.

It is an arithmetic number, because the mean of its divisors is an integer number (1317747690).

Almost surely, 2^25500025050 is an apocalyptic number.

25500025050 is an abundant number, since it is smaller than the sum of its proper divisors (37751864070).

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

25500025050 is a wasteful number, since it uses less digits than its factorization.

25500025050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31807 (or 31802 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 24.

The spelling of 25500025050 in words is "twenty-five billion, five hundred million, twenty-five thousand, fifty".