25252995500 has 24 divisors (see below), whose sum is σ = 55152543264. Its totient is φ = 10101198000.

The previous prime is 25252995499. The next prime is 25252995511. The reversal of 25252995500 is 559925252.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25252496 + ... + 25253495.

It is an arithmetic number, because the mean of its divisors is an integer number (2298022636).

Almost surely, 2^25252995500 is an apocalyptic number.

25252995500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25252995500 is an abundant number, since it is smaller than the sum of its proper divisors (29899547764).

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

25252995500 is a wasteful number, since it uses less digits than its factorization.

25252995500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50506010 (or 50505998 counting only the distinct ones).

The product of its (nonzero) digits is 405000, while the sum is 44.

The spelling of 25252995500 in words is "twenty-five billion, two hundred fifty-two million, nine hundred ninety-five thousand, five hundred".