57645899 has 2 divisors, whose sum is σ = 57645900. Its totient is φ = 57645898.

The previous prime is 57645869. The next prime is 57645937. The reversal of 57645899 is 99854675.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57645899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57645899.

It is not a weakly prime, because it can be changed into another prime (57645869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28822949 + 28822950.

It is an arithmetic number, because the mean of its divisors is an integer number (28822950).

Almost surely, 2^57645899 is an apocalyptic number.

57645899 is a deficient number, since it is larger than the sum of its proper divisors (1).

57645899 is an equidigital number, since it uses as much as digits as its factorization.

57645899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2721600, while the sum is 53.

The square root of 57645899 is about 7592.4896443788. The cubic root of 57645899 is about 386.2983076190.

The spelling of 57645899 in words is "fifty-seven million, six hundred forty-five thousand, eight hundred ninety-nine".