79255881 has 32 divisors (see below), whose sum is σ = 120768000. Its totient is φ = 51352704.

The previous prime is 79255879. The next prime is 79255901. The reversal of 79255881 is 18855297.

It is a happy number.

79255881 is a `hidden beast` number, since 7 + 92 + 558 + 8 + 1 = 666.

It is not a de Polignac number, because 79255881 - 2¹ = 79255879 is a prime.

It is a super-2 number, since 2×79255881² = 12562989346172322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79255831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155455 + ... + 155963.

It is an arithmetic number, because the mean of its divisors is an integer number (3774000).

Almost surely, 2^79255881 is an apocalyptic number.

It is an amenable number.

79255881 is a deficient number, since it is larger than the sum of its proper divisors (41512119).

79255881 is a wasteful number, since it uses less digits than its factorization.

79255881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670 (or 664 counting only the distinct ones).

The product of its digits is 201600, while the sum is 45.

The square root of 79255881 is about 8902.5772111226. The cubic root of 79255881 is about 429.5468111641.

The spelling of 79255881 in words is "seventy-nine million, two hundred fifty-five thousand, eight hundred eighty-one".