57479321 has 4 divisors (see below), whose sum is σ = 57502644. Its totient is φ = 57456000.

The previous prime is 57479299. The next prime is 57479327. The reversal of 57479321 is 12397475.

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 33223696 + 24255625 = 5764^2 + 4925^2 .

It is a cyclic number.

It is not a de Polignac number, because 57479321 - 2¹⁰ = 57478297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57479327) 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, 7460 + ... + 13061.

It is an arithmetic number, because the mean of its divisors is an integer number (14375661).

Almost surely, 2^57479321 is an apocalyptic number.

It is an amenable number.

57479321 is a deficient number, since it is larger than the sum of its proper divisors (23323).

57479321 is a wasteful number, since it uses less digits than its factorization.

57479321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23322.

The product of its digits is 52920, while the sum is 38.

The square root of 57479321 is about 7581.5117885551. The cubic root of 57479321 is about 385.9258562524.

The spelling of 57479321 in words is "fifty-seven million, four hundred seventy-nine thousand, three hundred twenty-one".