15915252 has 12 divisors (see below), whose sum is σ = 37135616. Its totient is φ = 5305080.

The previous prime is 15915227. The next prime is 15915253. The reversal of 15915252 is 25251951.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15915253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 663124 + ... + 663147.

Almost surely, 2^15915252 is an apocalyptic number.

15915252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15915252 is an abundant number, since it is smaller than the sum of its proper divisors (21220364).

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

15915252 is a wasteful number, since it uses less digits than its factorization.

15915252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326278 (or 1326276 counting only the distinct ones).

The product of its digits is 4500, while the sum is 30.

The square root of 15915252 is about 3989.3924349455. The cubic root of 15915252 is about 251.5385230314.

The spelling of 15915252 in words is "fifteen million, nine hundred fifteen thousand, two hundred fifty-two".