57215466 has 48 divisors (see below), whose sum is σ = 154559808. Its totient is φ = 14860800.

The previous prime is 57215453. The next prime is 57215503. The reversal of 57215466 is 66451275.

It is a happy number.

57215466 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 57215466.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 19255 + ... + 22026.

It is an arithmetic number, because the mean of its divisors is an integer number (3219996).

Almost surely, 2^57215466 is an apocalyptic number.

57215466 is an abundant number, since it is smaller than the sum of its proper divisors (97344342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57215466 is a wasteful number, since it uses less digits than its factorization.

57215466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41307 (or 41304 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 57215466 is about 7564.0905600079. The cubic root of 57215466 is about 385.3344280316.

The spelling of 57215466 in words is "fifty-seven million, two hundred fifteen thousand, four hundred sixty-six".