57184013 has 4 divisors (see below), whose sum is σ = 57826620. Its totient is φ = 56541408.

The previous prime is 57183991. The next prime is 57184019. The reversal of 57184013 is 31048175.

57184013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10903204 + 46280809 = 3302^2 + 6803^2 .

It is a cyclic number.

It is not a de Polignac number, because 57184013 - 2⁶ = 57183949 is a prime.

It is a super-2 number, since 2×57184013² = 6540022685568338, 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 (57184019) 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 3 ways as a sum of consecutive naturals, for example, 321170 + ... + 321347.

It is an arithmetic number, because the mean of its divisors is an integer number (14456655).

Almost surely, 2^57184013 is an apocalyptic number.

It is an amenable number.

57184013 is a deficient number, since it is larger than the sum of its proper divisors (642607).

57184013 is an equidigital number, since it uses as much as digits as its factorization.

57184013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642606.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 57184013 is about 7562.0111742843. The cubic root of 57184013 is about 385.2638052544.

The spelling of 57184013 in words is "fifty-seven million, one hundred eighty-four thousand, thirteen".