57913331 has 4 divisors (see below), whose sum is σ = 66186672. Its totient is φ = 49639992.

The previous prime is 57913327. The next prime is 57913343. The reversal of 57913331 is 13331975.

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 57913331 - 2² = 57913327 is a prime.

It is a super-2 number, since 2×57913331² = 6707907815031122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57913631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4136660 + ... + 4136673.

It is an arithmetic number, because the mean of its divisors is an integer number (16546668).

Almost surely, 2^57913331 is an apocalyptic number.

57913331 is a deficient number, since it is larger than the sum of its proper divisors (8273341).

57913331 is an equidigital number, since it uses as much as digits as its factorization.

57913331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8273340.

The product of its digits is 8505, while the sum is 32.

The square root of 57913331 is about 7610.0808799907. The cubic root of 57913331 is about 386.8947604704.

The spelling of 57913331 in words is "fifty-seven million, nine hundred thirteen thousand, three hundred thirty-one".