15512252 has 24 divisors (see below), whose sum is σ = 31612896. Its totient is φ = 6522048.

The previous prime is 15512251. The next prime is 15512257. The reversal of 15512252 is 25221551.

It is a super-2 number, since 2×15512252² = 481259924223008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15512251) 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, 3743 + ... + 6710.

It is an arithmetic number, because the mean of its divisors is an integer number (1317204).

Almost surely, 2^15512252 is an apocalyptic number.

It is an amenable number.

15512252 is an abundant number, since it is smaller than the sum of its proper divisors (16100644).

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

15512252 is a wasteful number, since it uses less digits than its factorization.

15512252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10517 (or 10515 counting only the distinct ones).

The product of its digits is 1000, while the sum is 23.

The square root of 15512252 is about 3938.5596351966. The cubic root of 15512252 is about 249.3972251513.

The spelling of 15512252 in words is "fifteen million, five hundred twelve thousand, two hundred fifty-two".