57083813 has 2 divisors, whose sum is σ = 57083814. Its totient is φ = 57083812.

The previous prime is 57083801. The next prime is 57083863. The reversal of 57083813 is 31838075.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54656449 + 2427364 = 7393^2 + 1558^2 .

It is a cyclic number.

It is not a de Polignac number, because 57083813 - 2⁴ = 57083797 is a prime.

It is a super-3 number, since 3×57083813³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57083863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28541906 + 28541907.

It is an arithmetic number, because the mean of its divisors is an integer number (28541907).

Almost surely, 2^57083813 is an apocalyptic number.

It is an amenable number.

57083813 is a deficient number, since it is larger than the sum of its proper divisors (1).

57083813 is an equidigital number, since it uses as much as digits as its factorization.

57083813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 57083813 is about 7555.3830478673. The cubic root of 57083813 is about 385.0386490688.

The spelling of 57083813 in words is "fifty-seven million, eighty-three thousand, eight hundred thirteen".