57213375 has 32 divisors (see below), whose sum is σ = 98504640. Its totient is φ = 29456000.

The previous prime is 57213371. The next prime is 57213391. The reversal of 57213375 is 57331275.

It is not a de Polignac number, because 57213375 - 2² = 57213371 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57213371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8245 + ... + 13505.

It is an arithmetic number, because the mean of its divisors is an integer number (3078270).

Almost surely, 2^57213375 is an apocalyptic number.

57213375 is a deficient number, since it is larger than the sum of its proper divisors (41291265).

57213375 is a wasteful number, since it uses less digits than its factorization.

57213375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5308 (or 5298 counting only the distinct ones).

The product of its digits is 22050, while the sum is 33.

The square root of 57213375 is about 7563.9523398816. The cubic root of 57213375 is about 385.3297338224.

The spelling of 57213375 in words is "fifty-seven million, two hundred thirteen thousand, three hundred seventy-five".