57577979 has 4 divisors (see below), whose sum is σ = 58148160. Its totient is φ = 57007800.

The previous prime is 57577969. The next prime is 57577987. The reversal of 57577979 is 97977575.

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 57577979 - 2²⁴ = 40800763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57577909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284939 + ... + 285140.

It is an arithmetic number, because the mean of its divisors is an integer number (14537040).

Almost surely, 2^57577979 is an apocalyptic number.

57577979 is a deficient number, since it is larger than the sum of its proper divisors (570181).

57577979 is a wasteful number, since it uses less digits than its factorization.

57577979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570180.

The product of its digits is 4862025, while the sum is 56.

The square root of 57577979 is about 7588.0154849605. The cubic root of 57577979 is about 386.1465321947.

The spelling of 57577979 in words is "fifty-seven million, five hundred seventy-seven thousand, nine hundred seventy-nine".