57215163 has 16 divisors (see below), whose sum is σ = 77479200. Its totient is φ = 37551360.

The previous prime is 57215153. The next prime is 57215201. The reversal of 57215163 is 36151275.

57215163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57215163 - 2¹⁰ = 57214139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57215163.

It is not an unprimeable number, because it can be changed into a prime (57215153) 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, 112153 + ... + 112661.

It is an arithmetic number, because the mean of its divisors is an integer number (4842450).

Almost surely, 2^57215163 is an apocalyptic number.

57215163 is a deficient number, since it is larger than the sum of its proper divisors (20264037).

57215163 is a wasteful number, since it uses less digits than its factorization.

57215163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022.

The product of its digits is 6300, while the sum is 30.

The square root of 57215163 is about 7564.0705311360. The cubic root of 57215163 is about 385.3337478161. Note that the first 3 decimals are identical.

The spelling of 57215163 in words is "fifty-seven million, two hundred fifteen thousand, one hundred sixty-three".