57233987 has 2 divisors, whose sum is σ = 57233988. Its totient is φ = 57233986.

The previous prime is 57233941. The next prime is 57233993. The reversal of 57233987 is 78933275.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57233987 - 2⁶ = 57233923 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57203987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28616993 + 28616994.

It is an arithmetic number, because the mean of its divisors is an integer number (28616994).

Almost surely, 2^57233987 is an apocalyptic number.

57233987 is a deficient number, since it is larger than the sum of its proper divisors (1).

57233987 is an equidigital number, since it uses as much as digits as its factorization.

57233987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 44.

The square root of 57233987 is about 7565.3147323823. The cubic root of 57233987 is about 385.3760019248.

The spelling of 57233987 in words is "fifty-seven million, two hundred thirty-three thousand, nine hundred eighty-seven".