25525025050 has 48 divisors (see below), whose sum is σ = 54415535040. Its totient is φ = 8726175360.

The previous prime is 25525024999. The next prime is 25525025081. The reversal of 25525025050 is 5052052552.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16366 + ... + 226534.

It is an arithmetic number, because the mean of its divisors is an integer number (1133656980).

Almost surely, 2^25525025050 is an apocalyptic number.

25525025050 is an abundant number, since it is smaller than the sum of its proper divisors (28890509990).

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

25525025050 is a wasteful number, since it uses less digits than its factorization.

25525025050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210535 (or 210530 counting only the distinct ones).

The product of its (nonzero) digits is 25000, while the sum is 31.

It can be divided in two parts, 2552502 and 5050, that added together give a palindrome (2557552).

The spelling of 25525025050 in words is "twenty-five billion, five hundred twenty-five million, twenty-five thousand, fifty".