57132238 has 4 divisors (see below), whose sum is σ = 85698360. Its totient is φ = 28566118.

The previous prime is 57132227. The next prime is 57132239. The reversal of 57132238 is 83223175.

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 (57132239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14283058 + ... + 14283061.

It is an arithmetic number, because the mean of its divisors is an integer number (21424590).

Almost surely, 2^57132238 is an apocalyptic number.

57132238 is a deficient number, since it is larger than the sum of its proper divisors (28566122).

57132238 is a wasteful number, since it uses less digits than its factorization.

57132238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28566121.

The product of its digits is 10080, while the sum is 31.

The square root of 57132238 is about 7558.5870372709. The cubic root of 57132238 is about 385.1474961930.

The spelling of 57132238 in words is "fifty-seven million, one hundred thirty-two thousand, two hundred thirty-eight".