79427255 has 4 divisors (see below), whose sum is σ = 95312712. Its totient is φ = 63541800.

The previous prime is 79427251. The next prime is 79427261. The reversal of 79427255 is 55272497.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55272497 = 7 ⋅7896071.

It is not a de Polignac number, because 79427255 - 2² = 79427251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79427251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7942721 + ... + 7942730.

It is an arithmetic number, because the mean of its divisors is an integer number (23828178).

Almost surely, 2^79427255 is an apocalyptic number.

79427255 is a deficient number, since it is larger than the sum of its proper divisors (15885457).

79427255 is a wasteful number, since it uses less digits than its factorization.

79427255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15885456.

The product of its digits is 176400, while the sum is 41.

The square root of 79427255 is about 8912.1969794210. The cubic root of 79427255 is about 429.8561895149.

The spelling of 79427255 in words is "seventy-nine million, four hundred twenty-seven thousand, two hundred fifty-five".