252805525500 has 96 divisors (see below), whose sum is σ = 803094259968. Its totient is φ = 61286184000.

The previous prime is 252805525499. The next prime is 252805525513. The reversal of 252805525500 is 5525508252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7644274 + ... + 7677273.

It is an arithmetic number, because the mean of its divisors is an integer number (8365565208).

Almost surely, 2^252805525500 is an apocalyptic number.

252805525500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252805525500 is an abundant number, since it is smaller than the sum of its proper divisors (550288734468).

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

252805525500 is a wasteful number, since it uses less digits than its factorization.

252805525500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15321580 (or 15321568 counting only the distinct ones).

The product of its (nonzero) digits is 200000, while the sum is 39.

The spelling of 252805525500 in words is "two hundred fifty-two billion, eight hundred five million, five hundred twenty-five thousand, five hundred".