57383881 has 2 divisors, whose sum is σ = 57383882. Its totient is φ = 57383880.

The previous prime is 57383867. The next prime is 57383899. The reversal of 57383881 is 18838375.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34916281 + 22467600 = 5909^2 + 4740^2 .

It is a cyclic number.

It is not a de Polignac number, because 57383881 - 2¹¹ = 57381833 is a prime.

It is a super-2 number, since 2×57383881² = 6585819597244322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57383861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28691940 + 28691941.

It is an arithmetic number, because the mean of its divisors is an integer number (28691941).

Almost surely, 2^57383881 is an apocalyptic number.

It is an amenable number.

57383881 is a deficient number, since it is larger than the sum of its proper divisors (1).

57383881 is an equidigital number, since it uses as much as digits as its factorization.

57383881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 43.

The square root of 57383881 is about 7575.2149144430. The cubic root of 57383881 is about 385.7121378351.

The spelling of 57383881 in words is "fifty-seven million, three hundred eighty-three thousand, eight hundred eighty-one".