79577225 has 72 divisors (see below), whose sum is σ = 130616640. Its totient is φ = 47537280.

The previous prime is 79577213. The next prime is 79577237. The reversal of 79577225 is 52277597.

It is an interprime number because it is at equal distance from previous prime (79577213) and next prime (79577237).

It is not a de Polignac number, because 79577225 - 2⁶ = 79577161 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 302444 + ... + 302706.

It is an arithmetic number, because the mean of its divisors is an integer number (1814120).

Almost surely, 2^79577225 is an apocalyptic number.

It is an amenable number.

79577225 is a deficient number, since it is larger than the sum of its proper divisors (51039415).

79577225 is a wasteful number, since it uses less digits than its factorization.

79577225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319 (or 307 counting only the distinct ones).

The product of its digits is 308700, while the sum is 44.

The square root of 79577225 is about 8920.6067618744. The cubic root of 79577225 is about 430.1265627088.

The spelling of 79577225 in words is "seventy-nine million, five hundred seventy-seven thousand, two hundred twenty-five".