79518625 has 8 divisors (see below), whose sum is σ = 99239400. Its totient is φ = 63614800.

The previous prime is 79518623. The next prime is 79518631. The reversal of 79518625 is 52681597.

It can be written as a sum of positive squares in 4 ways, for example, as 2903616 + 76615009 = 1704^2 + 8753^2 .

It is not a de Polignac number, because 79518625 - 2¹ = 79518623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79518623) 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, 317950 + ... + 318199.

It is an arithmetic number, because the mean of its divisors is an integer number (12404925).

Almost surely, 2^79518625 is an apocalyptic number.

It is an amenable number.

79518625 is a deficient number, since it is larger than the sum of its proper divisors (19720775).

79518625 is an equidigital number, since it uses as much as digits as its factorization.

79518625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636164 (or 636154 counting only the distinct ones).

The product of its digits is 151200, while the sum is 43.

The square root of 79518625 is about 8917.3216270358. The cubic root of 79518625 is about 430.0209562529.

The spelling of 79518625 in words is "seventy-nine million, five hundred eighteen thousand, six hundred twenty-five".