15625505152 has 32 divisors (see below), whose sum is σ = 32767306200. Its totient is φ = 7401553920.

The previous prime is 15625505149. The next prime is 15625505183. The reversal of 15625505152 is 25150552651.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×15625505152² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3210049 + ... + 3214912.

Almost surely, 2^15625505152 is an apocalyptic number.

It is an amenable number.

15625505152 is an abundant number, since it is smaller than the sum of its proper divisors (17141801048).

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

15625505152 is an equidigital number, since it uses as much as digits as its factorization.

15625505152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6424994 (or 6424982 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 37.

The spelling of 15625505152 in words is "fifteen billion, six hundred twenty-five million, five hundred five thousand, one hundred fifty-two".