79550571 has 4 divisors (see below), whose sum is σ = 106067432. Its totient is φ = 53033712.

The previous prime is 79550539. The next prime is 79550593. The reversal of 79550571 is 17505597.

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

It is not a de Polignac number, because 79550571 - 2⁵ = 79550539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79550501) 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, 13258426 + ... + 13258431.

It is an arithmetic number, because the mean of its divisors is an integer number (26516858).

Almost surely, 2^79550571 is an apocalyptic number.

79550571 is a deficient number, since it is larger than the sum of its proper divisors (26516861).

79550571 is a wasteful number, since it uses less digits than its factorization.

79550571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26516860.

The product of its (nonzero) digits is 55125, while the sum is 39.

The square root of 79550571 is about 8919.1126800820. The cubic root of 79550571 is about 430.0785344208.

The spelling of 79550571 in words is "seventy-nine million, five hundred fifty thousand, five hundred seventy-one".