252800525550 has 48 divisors (see below), whose sum is σ = 663824445552. Its totient is φ = 63447974400.

The previous prime is 252800525543. The next prime is 252800525629. The reversal of 252800525550 is 55525008252.

It is a junction number, because it is equal to n+sod(n) for n = 252800525499 and 252800525508.

It is a congruent number.

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, 49566181 + ... + 49571280.

It is an arithmetic number, because the mean of its divisors is an integer number (13829675949).

Almost surely, 2^252800525550 is an apocalyptic number.

252800525550 is an abundant number, since it is smaller than the sum of its proper divisors (411023920002).

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

252800525550 is a wasteful number, since it uses less digits than its factorization.

252800525550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99137493 (or 99137488 counting only the distinct ones).

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

The spelling of 252800525550 in words is "two hundred fifty-two billion, eight hundred million, five hundred twenty-five thousand, five hundred fifty".