79522650 has 72 divisors (see below), whose sum is σ = 217228284. Its totient is φ = 20851200.

The previous prime is 79522649. The next prime is 79522679. The reversal of 79522650 is 5622597.

79522650 is a `hidden beast` number, since 79 + 522 + 65 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 1147041 + 78375609 = 1071^2 + 8853^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 26002 + ... + 28898.

Almost surely, 2^79522650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79522650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108614142).

79522650 is an abundant number, since it is smaller than the sum of its proper divisors (137705634).

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

79522650 is a wasteful number, since it uses less digits than its factorization.

79522650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2976 (or 2968 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 79522650 is about 8917.5473085373. The cubic root of 79522650 is about 430.0282115978.

It can be divided in two parts, 79 and 522650, that added together give a square (522729 = 723²).

The spelling of 79522650 in words is "seventy-nine million, five hundred twenty-two thousand, six hundred fifty".