15533252 has 12 divisors (see below), whose sum is σ = 31066560. Its totient is φ = 6657096.

The previous prime is 15533249. The next prime is 15533261. The reversal of 15533252 is 25233551.

15533252 is an admirable 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, 277352 + ... + 277407.

It is an arithmetic number, because the mean of its divisors is an integer number (2588880).

Almost surely, 2^15533252 is an apocalyptic number.

It is an amenable number.

15533252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

15533252 is a wasteful number, since it uses less digits than its factorization.

15533252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554770 (or 554768 counting only the distinct ones).

The product of its digits is 4500, while the sum is 26.

The square root of 15533252 is about 3941.2246827604. The cubic root of 15533252 is about 249.5097164500.

The spelling of 15533252 in words is "fifteen million, five hundred thirty-three thousand, two hundred fifty-two".