79953251 has 24 divisors (see below), whose sum is σ = 96033600. Its totient is φ = 66337152.

The previous prime is 79953233. The next prime is 79953253. The reversal of 79953251 is 15235997.

It is a de Polignac number, because none of the positive numbers 2^k-79953251 is a prime.

It is a super-3 number, since 3×79953251³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79953199 and 79953208.

It is not an unprimeable number, because it can be changed into a prime (79953253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 343031 + ... + 343263.

It is an arithmetic number, because the mean of its divisors is an integer number (4001400).

Almost surely, 2^79953251 is an apocalyptic number.

79953251 is the 7301-st pentagonal number.

79953251 is a deficient number, since it is larger than the sum of its proper divisors (16080349).

79953251 is a wasteful number, since it uses less digits than its factorization.

79953251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 436 counting only the distinct ones).

The product of its digits is 85050, while the sum is 41.

The square root of 79953251 is about 8941.6581795548. The cubic root of 79953251 is about 430.8029902628.

The spelling of 79953251 in words is "seventy-nine million, nine hundred fifty-three thousand, two hundred fifty-one".