15725532 has 24 divisors (see below), whose sum is σ = 37020816. Its totient is φ = 5195008.

The previous prime is 15725531. The next prime is 15725557. The reversal of 15725532 is 23552751.

It is a self number, because there is not a number n which added to its sum of digits gives 15725532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15725531) 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, 4443 + ... + 7154.

It is an arithmetic number, because the mean of its divisors is an integer number (1542534).

Almost surely, 2^15725532 is an apocalyptic number.

15725532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15725532 is an abundant number, since it is smaller than the sum of its proper divisors (21295284).

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

15725532 is a wasteful number, since it uses less digits than its factorization.

15725532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11717 (or 11715 counting only the distinct ones).

The product of its digits is 10500, while the sum is 30.

The square root of 15725532 is about 3965.5430901706. The cubic root of 15725532 is about 250.5350248435.

The spelling of 15725532 in words is "fifteen million, seven hundred twenty-five thousand, five hundred thirty-two".