15505000252 has 24 divisors (see below), whose sum is σ = 31518364640. Its totient is φ = 6536064960.

The previous prime is 15505000237. The next prime is 15505000261. The reversal of 15505000252 is 25200050551.

It is a happy number.

It is a congruent number.

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, 4537227 + ... + 4540642.

Almost surely, 2^15505000252 is an apocalyptic number.

It is an amenable number.

15505000252 is an abundant number, since it is smaller than the sum of its proper divisors (16013364388).

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

15505000252 is a wasteful number, since it uses less digits than its factorization.

15505000252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9077941 (or 9077939 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 25.

The spelling of 15505000252 in words is "fifteen billion, five hundred five million, two hundred fifty-two", and thus it is an aban number.