15663252 has 24 divisors (see below), whose sum is σ = 39870432. Its totient is φ = 4746400.

The previous prime is 15663217. The next prime is 15663257. The reversal of 15663252 is 25236651.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15663257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59199 + ... + 59462.

It is an arithmetic number, because the mean of its divisors is an integer number (1661268).

Almost surely, 2^15663252 is an apocalyptic number.

15663252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15663252 is an abundant number, since it is smaller than the sum of its proper divisors (24207180).

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

15663252 is a wasteful number, since it uses less digits than its factorization.

15663252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118679 (or 118677 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 15663252 is about 3957.6826552921. The cubic root of 15663252 is about 250.2038444113.

The spelling of 15663252 in words is "fifteen million, six hundred sixty-three thousand, two hundred fifty-two".