57433889 has 2 divisors, whose sum is σ = 57433890. Its totient is φ = 57433888.

The previous prime is 57433861. The next prime is 57433913. The reversal of 57433889 is 98833475.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29343889 + 28090000 = 5417^2 + 5300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57433889 is a prime.

It is not a weakly prime, because it can be changed into another prime (57433489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28716944 + 28716945.

It is an arithmetic number, because the mean of its divisors is an integer number (28716945).

Almost surely, 2^57433889 is an apocalyptic number.

It is an amenable number.

57433889 is a deficient number, since it is larger than the sum of its proper divisors (1).

57433889 is an equidigital number, since it uses as much as digits as its factorization.

57433889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 47.

The square root of 57433889 is about 7578.5149600697. The cubic root of 57433889 is about 385.8241500809.

The spelling of 57433889 in words is "fifty-seven million, four hundred thirty-three thousand, eight hundred eighty-nine".