79725528 has 48 divisors (see below), whose sum is σ = 221766480. Its totient is φ = 25856064.

The previous prime is 79725523. The next prime is 79725533. The reversal of 79725528 is 82552797.

It is a happy number.

79725528 is a `hidden beast` number, since 7 + 97 + 2 + 552 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (79725523) and next prime (79725533).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79725523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12300 + ... + 17627.

It is an arithmetic number, because the mean of its divisors is an integer number (4620135).

Almost surely, 2^79725528 is an apocalyptic number.

It is an amenable number.

79725528 is an abundant number, since it is smaller than the sum of its proper divisors (142040952).

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

79725528 is a wasteful number, since it uses less digits than its factorization.

79725528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29976 (or 29969 counting only the distinct ones).

The product of its digits is 352800, while the sum is 45.

The square root of 79725528 is about 8928.9152756648. The cubic root of 79725528 is about 430.3935967087.

The spelling of 79725528 in words is "seventy-nine million, seven hundred twenty-five thousand, five hundred twenty-eight".