79420255 has 4 divisors (see below), whose sum is σ = 95304312. Its totient is φ = 63536200.

The previous prime is 79420223. The next prime is 79420267. The reversal of 79420255 is 55202497.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 79420255 - 2⁵ = 79420223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79420255.

It is a congruent number.

It is an unprimeable number.

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, 7942021 + ... + 7942030.

It is an arithmetic number, because the mean of its divisors is an integer number (23826078).

Almost surely, 2^79420255 is an apocalyptic number.

79420255 is a deficient number, since it is larger than the sum of its proper divisors (15884057).

79420255 is a wasteful number, since it uses less digits than its factorization.

79420255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15884056.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 79420255 is about 8911.8042505432. The cubic root of 79420255 is about 429.8435612648.

The spelling of 79420255 in words is "seventy-nine million, four hundred twenty thousand, two hundred fifty-five".