79660055 has 4 divisors (see below), whose sum is σ = 95592072. Its totient is φ = 63728040.

The previous prime is 79660039. The next prime is 79660057. The reversal of 79660055 is 55006697.

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

It is not a de Polignac number, because 79660055 - 2⁴ = 79660039 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 (79660057) 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, 7966001 + ... + 7966010.

It is an arithmetic number, because the mean of its divisors is an integer number (23898018).

Almost surely, 2^79660055 is an apocalyptic number.

79660055 is a deficient number, since it is larger than the sum of its proper divisors (15932017).

79660055 is a wasteful number, since it uses less digits than its factorization.

79660055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15932016.

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 79660055 is about 8925.2481758212. The cubic root of 79660055 is about 430.2757470561.

The spelling of 79660055 in words is "seventy-nine million, six hundred sixty thousand, fifty-five".