15552252 has 18 divisors (see below), whose sum is σ = 39312728. Its totient is φ = 5184072.

The previous prime is 15552233. The next prime is 15552259. The reversal of 15552252 is 25225551.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15552259) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 215968 + ... + 216039.

Almost surely, 2^15552252 is an apocalyptic number.

15552252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15552252 is an abundant number, since it is smaller than the sum of its proper divisors (23760476).

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

15552252 is a wasteful number, since it uses less digits than its factorization.

15552252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432017 (or 432012 counting only the distinct ones).

The product of its digits is 5000, while the sum is 27.

The square root of 15552252 is about 3943.6343643903. The cubic root of 15552252 is about 249.6114069614.

The spelling of 15552252 in words is "fifteen million, five hundred fifty-two thousand, two hundred fifty-two".