57109999 has 2 divisors, whose sum is σ = 57110000. Its totient is φ = 57109998.

The previous prime is 57109979. The next prime is 57110041. The reversal of 57109999 is 99990175.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57109999 - 2¹¹ = 57107951 is a prime.

57109999 is a modest number, since divided by 9999 gives 5710 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57109939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28554999 + 28555000.

It is an arithmetic number, because the mean of its divisors is an integer number (28555000).

Almost surely, 2^57109999 is an apocalyptic number.

57109999 is a deficient number, since it is larger than the sum of its proper divisors (1).

57109999 is an equidigital number, since it uses as much as digits as its factorization.

57109999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 229635, while the sum is 49.

The square root of 57109999 is about 7557.1157858008. The cubic root of 57109999 is about 385.0975161988.

The spelling of 57109999 in words is "fifty-seven million, one hundred nine thousand, nine hundred ninety-nine".