15556353252 has 24 divisors (see below), whose sum is σ = 39597990432. Its totient is φ = 4714046400.

The previous prime is 15556353229. The next prime is 15556353271. The reversal of 15556353252 is 25235365551.

It is a happy 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, 58925449 + ... + 58925712.

It is an arithmetic number, because the mean of its divisors is an integer number (1649916268).

Almost surely, 2^15556353252 is an apocalyptic number.

15556353252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15556353252 is an abundant number, since it is smaller than the sum of its proper divisors (24041637180).

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

15556353252 is a wasteful number, since it uses less digits than its factorization.

15556353252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117851179 (or 117851177 counting only the distinct ones).

The product of its digits is 675000, while the sum is 42.

The spelling of 15556353252 in words is "fifteen billion, five hundred fifty-six million, three hundred fifty-three thousand, two hundred fifty-two".