55790579 has 4 divisors (see below), whose sum is σ = 60082176. Its totient is φ = 51498984.

The previous prime is 55790573. The next prime is 55790587. The reversal of 55790579 is 97509755.

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

It is a cyclic number.

It is not a de Polignac number, because 55790579 - 2²⁰ = 54742003 is a prime.

It is a super-2 number, since 2×55790579² = 6225177410310482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55790573) 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, 2145779 + ... + 2145804.

It is an arithmetic number, because the mean of its divisors is an integer number (15020544).

Almost surely, 2^55790579 is an apocalyptic number.

55790579 is a deficient number, since it is larger than the sum of its proper divisors (4291597).

55790579 is a wasteful number, since it uses less digits than its factorization.

55790579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4291596.

The product of its (nonzero) digits is 496125, while the sum is 47.

The square root of 55790579 is about 7469.3091380663. The cubic root of 55790579 is about 382.1087265776.

The spelling of 55790579 in words is "fifty-five million, seven hundred ninety thousand, five hundred seventy-nine".