57198959 has 2 divisors, whose sum is σ = 57198960. Its totient is φ = 57198958.

The previous prime is 57198919. The next prime is 57198971. The reversal of 57198959 is 95989175.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57198959 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57198959.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57198919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28599479 + 28599480.

It is an arithmetic number, because the mean of its divisors is an integer number (28599480).

Almost surely, 2^57198959 is an apocalyptic number.

57198959 is a deficient number, since it is larger than the sum of its proper divisors (1).

57198959 is an equidigital number, since it uses as much as digits as its factorization.

57198959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1020600, while the sum is 53.

The square root of 57198959 is about 7562.9993388867. Note that the first 3 decimals coincide. The cubic root of 57198959 is about 385.2973673809.

The spelling of 57198959 in words is "fifty-seven million, one hundred ninety-eight thousand, nine hundred fifty-nine".