57023239 has 8 divisors (see below), whose sum is σ = 70182560. Its totient is φ = 45117216.

The previous prime is 57023209. The next prime is 57023261. The reversal of 57023239 is 93232075.

57023239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57023239 - 2⁵ = 57023207 is a prime.

It is a super-2 number, since 2×57023239² = 6503299572102242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57023239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57023209) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 313224 + ... + 313405.

It is an arithmetic number, because the mean of its divisors is an integer number (8772820).

Almost surely, 2^57023239 is an apocalyptic number.

57023239 is a deficient number, since it is larger than the sum of its proper divisors (13159321).

57023239 is a wasteful number, since it uses less digits than its factorization.

57023239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626649.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 57023239 is about 7551.3733188076. The cubic root of 57023239 is about 384.9024073769.

The spelling of 57023239 in words is "fifty-seven million, twenty-three thousand, two hundred thirty-nine".