57338231 has 4 divisors (see below), whose sum is σ = 58278264. Its totient is φ = 56398200.

The previous prime is 57338207. The next prime is 57338233. The reversal of 57338231 is 13283375.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57338231 is a prime.

It is a super-2 number, since 2×57338231² = 6575345468418722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57338233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469925 + ... + 470046.

It is an arithmetic number, because the mean of its divisors is an integer number (14569566).

Almost surely, 2^57338231 is an apocalyptic number.

57338231 is a deficient number, since it is larger than the sum of its proper divisors (940033).

57338231 is an equidigital number, since it uses as much as digits as its factorization.

57338231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940032.

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

The square root of 57338231 is about 7572.2011991230. The cubic root of 57338231 is about 385.6098301838.

The spelling of 57338231 in words is "fifty-seven million, three hundred thirty-eight thousand, two hundred thirty-one".