57940815 has 16 divisors (see below), whose sum is σ = 93221856. Its totient is φ = 30729600.

The previous prime is 57940807. The next prime is 57940843. The reversal of 57940815 is 51804975.

It is not a de Polignac number, because 57940815 - 2³ = 57940807 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7956 + ... + 13385.

It is an arithmetic number, because the mean of its divisors is an integer number (5826366).

Almost surely, 2^57940815 is an apocalyptic number.

57940815 is a deficient number, since it is larger than the sum of its proper divisors (35281041).

57940815 is a wasteful number, since it uses less digits than its factorization.

57940815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21530.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 57940815 is about 7611.8864284749. The cubic root of 57940815 is about 386.9559538304.

The spelling of 57940815 in words is "fifty-seven million, nine hundred forty thousand, eight hundred fifteen".