57320837 has 12 divisors (see below), whose sum is σ = 66813120. Its totient is φ = 49033656.

The previous prime is 57320827. The next prime is 57320843. The reversal of 57320837 is 73802375.

57320837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57320837 - 2⁶ = 57320773 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57320797 and 57320806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57320827) 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 11 ways as a sum of consecutive naturals, for example, 34418 + ... + 36044.

It is an arithmetic number, because the mean of its divisors is an integer number (5567760).

Almost surely, 2^57320837 is an apocalyptic number.

It is an amenable number.

57320837 is a deficient number, since it is larger than the sum of its proper divisors (9492283).

57320837 is a wasteful number, since it uses less digits than its factorization.

57320837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2360 (or 2353 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 57320837 is about 7571.0525688308. The cubic root of 57320837 is about 385.5708336561.

The spelling of 57320837 in words is "fifty-seven million, three hundred twenty thousand, eight hundred thirty-seven".