57581983 has 2 divisors, whose sum is σ = 57581984. Its totient is φ = 57581982.

The previous prime is 57581977. The next prime is 57582061. The reversal of 57581983 is 38918575.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57581983 - 2⁹ = 57581471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57581963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28790991 + 28790992.

It is an arithmetic number, because the mean of its divisors is an integer number (28790992).

Almost surely, 2^57581983 is an apocalyptic number.

57581983 is a deficient number, since it is larger than the sum of its proper divisors (1).

57581983 is an equidigital number, since it uses as much as digits as its factorization.

57581983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 46.

The square root of 57581983 is about 7588.2793174738. The cubic root of 57581983 is about 386.1554829250.

It can be divided in two parts, 57581 and 983, that added together give a square (58564 = 242²).

The spelling of 57581983 in words is "fifty-seven million, five hundred eighty-one thousand, nine hundred eighty-three".