57109369 has 2 divisors, whose sum is σ = 57109370. Its totient is φ = 57109368.

The previous prime is 57109343. The next prime is 57109373. The reversal of 57109369 is 96390175.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31505769 + 25603600 = 5613^2 + 5060^2 .

It is a cyclic number.

It is not a de Polignac number, because 57109369 - 2¹⁷ = 56978297 is a prime.

It is a super-2 number, since 2×57109369² = 6522960055156322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57109309) 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, 28554684 + 28554685.

It is an arithmetic number, because the mean of its divisors is an integer number (28554685).

Almost surely, 2^57109369 is an apocalyptic number.

It is an amenable number.

57109369 is a deficient number, since it is larger than the sum of its proper divisors (1).

57109369 is an equidigital number, since it uses as much as digits as its factorization.

57109369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 57109369 is about 7557.0741031169. The cubic root of 57109369 is about 385.0961001460.

The spelling of 57109369 in words is "fifty-seven million, one hundred nine thousand, three hundred sixty-nine".