57567869 has 2 divisors, whose sum is σ = 57567870. Its totient is φ = 57567868.

The previous prime is 57567863. The next prime is 57567889. The reversal of 57567869 is 96876575.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51984100 + 5583769 = 7210^2 + 2363^2 .

It is a cyclic number.

It is not a de Polignac number, because 57567869 - 2¹² = 57563773 is a prime.

It is a super-2 number, since 2×57567869² = 6628119082402322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57567869.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57567863) 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, 28783934 + 28783935.

It is an arithmetic number, because the mean of its divisors is an integer number (28783935).

Almost surely, 2^57567869 is an apocalyptic number.

It is an amenable number.

57567869 is a deficient number, since it is larger than the sum of its proper divisors (1).

57567869 is an equidigital number, since it uses as much as digits as its factorization.

57567869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3175200, while the sum is 53.

The square root of 57567869 is about 7587.3492736265. The cubic root of 57567869 is about 386.1239299775.

The spelling of 57567869 in words is "fifty-seven million, five hundred sixty-seven thousand, eight hundred sixty-nine".