57506393 has 8 divisors (see below), whose sum is σ = 69587712. Its totient is φ = 46391616.

The previous prime is 57506389. The next prime is 57506413. The reversal of 57506393 is 39360575.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57506393 - 2² = 57506389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57506363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241505 + ... + 241742.

It is an arithmetic number, because the mean of its divisors is an integer number (8698464).

Almost surely, 2^57506393 is an apocalyptic number.

It is an amenable number.

57506393 is a deficient number, since it is larger than the sum of its proper divisors (12081319).

57506393 is a wasteful number, since it uses less digits than its factorization.

57506393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483271.

The product of its (nonzero) digits is 85050, while the sum is 38.

The square root of 57506393 is about 7583.2969742718. The cubic root of 57506393 is about 385.9864354008.

The spelling of 57506393 in words is "fifty-seven million, five hundred six thousand, three hundred ninety-three".