79550573 has 4 divisors (see below), whose sum is σ = 80370780. Its totient is φ = 78730368.

The previous prime is 79550539. The next prime is 79550593. The reversal of 79550573 is 37505597.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 29735209 + 49815364 = 5453^2 + 7058^2 .

It is a cyclic number.

It is not a de Polignac number, because 79550573 - 2¹² = 79546477 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 79550573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79550503) 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, 409958 + ... + 410151.

It is an arithmetic number, because the mean of its divisors is an integer number (20092695).

Almost surely, 2^79550573 is an apocalyptic number.

It is an amenable number.

79550573 is a deficient number, since it is larger than the sum of its proper divisors (820207).

79550573 is an equidigital number, since it uses as much as digits as its factorization.

79550573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820206.

The product of its (nonzero) digits is 165375, while the sum is 41.

The square root of 79550573 is about 8919.1127922008. The cubic root of 79550573 is about 430.0785380251.

The spelling of 79550573 in words is "seventy-nine million, five hundred fifty thousand, five hundred seventy-three".