57382313 has 4 divisors (see below), whose sum is σ = 57801300. Its totient is φ = 56963328.

The previous prime is 57382277. The next prime is 57382319. The reversal of 57382313 is 31328375.

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 38477209 + 18905104 = 6203^2 + 4348^2 .

It is a cyclic number.

It is not a de Polignac number, because 57382313 - 2⁸ = 57382057 is a prime.

It is a super-3 number, since 3×57382313³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57382313.

It is not an unprimeable number, because it can be changed into a prime (57382319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209288 + ... + 209561.

It is an arithmetic number, because the mean of its divisors is an integer number (14450325).

Almost surely, 2^57382313 is an apocalyptic number.

It is an amenable number.

57382313 is a deficient number, since it is larger than the sum of its proper divisors (418987).

57382313 is a wasteful number, since it uses less digits than its factorization.

57382313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418986.

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

The square root of 57382313 is about 7575.1114183225. Note that the first 3 decimals coincide. The cubic root of 57382313 is about 385.7086246409.

The spelling of 57382313 in words is "fifty-seven million, three hundred eighty-two thousand, three hundred thirteen".