57117019 has 2 divisors, whose sum is σ = 57117020. Its totient is φ = 57117018.

The previous prime is 57117013. The next prime is 57117061. The reversal of 57117019 is 91071175.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57117019 - 2¹³ = 57108827 is a prime.

It is a super-2 number, since 2×57117019² = 6524707718892722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57117013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28558509 + 28558510.

It is an arithmetic number, because the mean of its divisors is an integer number (28558510).

Almost surely, 2^57117019 is an apocalyptic number.

57117019 is a deficient number, since it is larger than the sum of its proper divisors (1).

57117019 is an equidigital number, since it uses as much as digits as its factorization.

57117019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2205, while the sum is 31.

The square root of 57117019 is about 7557.5802344401. The cubic root of 57117019 is about 385.1132943687.

The spelling of 57117019 in words is "fifty-seven million, one hundred seventeen thousand, nineteen".