15795520 has 56 divisors (see below), whose sum is σ = 40517064. Its totient is φ = 5830656.

The previous prime is 15795511. The next prime is 15795541. The reversal of 15795520 is 2559751.

It can be written as a sum of positive squares in 4 ways, for example, as 678976 + 15116544 = 824^2 + 3888^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2262 + ... + 6058.

It is an arithmetic number, because the mean of its divisors is an integer number (723519).

Almost surely, 2^15795520 is an apocalyptic number.

15795520 is a gapful number since it is divisible by the number (10) 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 15795520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20258532).

15795520 is an abundant number, since it is smaller than the sum of its proper divisors (24721544).

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

15795520 is a wasteful number, since it uses less digits than its factorization.

15795520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3827 (or 3817 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 34.

The square root of 15795520 is about 3974.3578097600. The cubic root of 15795520 is about 250.9061515889.

The spelling of 15795520 in words is "fifteen million, seven hundred ninety-five thousand, five hundred twenty".