79905055 has 8 divisors (see below), whose sum is σ = 96177744. Its totient is φ = 63729600.

The previous prime is 79905047. The next prime is 79905061. The reversal of 79905055 is 55050997.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 79905055 - 2³ = 79905047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79904999 and 79905017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22486 + ... + 25795.

It is an arithmetic number, because the mean of its divisors is an integer number (12022218).

Almost surely, 2^79905055 is an apocalyptic number.

79905055 is a deficient number, since it is larger than the sum of its proper divisors (16272689).

79905055 is a wasteful number, since it uses less digits than its factorization.

79905055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48617.

The product of its (nonzero) digits is 70875, while the sum is 40.

The square root of 79905055 is about 8938.9627474333. The cubic root of 79905055 is about 430.7164098589.

The spelling of 79905055 in words is "seventy-nine million, nine hundred five thousand, fifty-five".