57215914 has 32 divisors (see below), whose sum is σ = 104322816. Its totient is φ = 22974720.

The previous prime is 57215911. The next prime is 57215933. The reversal of 57215914 is 41951275.

57215914 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 57215914.

It is not an unprimeable number, because it can be changed into a prime (57215911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73632 + ... + 74404.

It is an arithmetic number, because the mean of its divisors is an integer number (3260088).

Almost surely, 2^57215914 is an apocalyptic number.

57215914 is a deficient number, since it is larger than the sum of its proper divisors (47106902).

57215914 is a wasteful number, since it uses less digits than its factorization.

57215914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110.

The product of its digits is 12600, while the sum is 34.

The square root of 57215914 is about 7564.1201735562. The cubic root of 57215914 is about 385.3354337584.

The spelling of 57215914 in words is "fifty-seven million, two hundred fifteen thousand, nine hundred fourteen".