57331382 has 4 divisors (see below), whose sum is σ = 85997076. Its totient is φ = 28665690.

The previous prime is 57331381. The next prime is 57331409. The reversal of 57331382 is 28313375.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57331381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14332844 + ... + 14332847.

It is an arithmetic number, because the mean of its divisors is an integer number (21499269).

Almost surely, 2^57331382 is an apocalyptic number.

57331382 is a deficient number, since it is larger than the sum of its proper divisors (28665694).

57331382 is a wasteful number, since it uses less digits than its factorization.

57331382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28665693.

The product of its digits is 15120, while the sum is 32.

The square root of 57331382 is about 7571.7489393138. The cubic root of 57331382 is about 385.5944759902.

The spelling of 57331382 in words is "fifty-seven million, three hundred thirty-one thousand, three hundred eighty-two".