79253261 has 4 divisors (see below), whose sum is σ = 79354752. Its totient is φ = 79151772.

The previous prime is 79253231. The next prime is 79253281. The reversal of 79253261 is 16235297.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16235297 = 13 ⋅1248869.

It is a cyclic number.

It is not a de Polignac number, because 79253261 - 2⁶ = 79253197 is a prime.

It is a super-3 number, since 3×79253261³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79253231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49565 + ... + 51138.

It is an arithmetic number, because the mean of its divisors is an integer number (19838688).

Almost surely, 2^79253261 is an apocalyptic number.

It is an amenable number.

79253261 is a deficient number, since it is larger than the sum of its proper divisors (101491).

79253261 is a wasteful number, since it uses less digits than its factorization.

79253261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101490.

The product of its digits is 22680, while the sum is 35.

The square root of 79253261 is about 8902.4300615057. The cubic root of 79253261 is about 429.5420778664.

The spelling of 79253261 in words is "seventy-nine million, two hundred fifty-three thousand, two hundred sixty-one".