15995532 has 48 divisors (see below), whose sum is σ = 43070720. Its totient is φ = 4525632.

The previous prime is 15995531. The next prime is 15995561. The reversal of 15995532 is 23559951.

It is not an unprimeable number, because it can be changed into a prime (15995531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8283 + ... + 10029.

Almost surely, 2^15995532 is an apocalyptic number.

15995532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15995532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21535360).

15995532 is an abundant number, since it is smaller than the sum of its proper divisors (27075188).

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

15995532 is a wasteful number, since it uses less digits than its factorization.

15995532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870 (or 1868 counting only the distinct ones).

The product of its digits is 60750, while the sum is 39.

The square root of 15995532 is about 3999.4414610043. The cubic root of 15995532 is about 251.9607522651.

The spelling of 15995532 in words is "fifteen million, nine hundred ninety-five thousand, five hundred thirty-two".