57196889 has 2 divisors, whose sum is σ = 57196890. Its totient is φ = 57196888.

The previous prime is 57196879. The next prime is 57196907. The reversal of 57196889 is 98869175.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31360000 + 25836889 = 5600^2 + 5083^2 .

It is a cyclic number.

It is not a de Polignac number, because 57196889 - 2⁴ = 57196873 is a prime.

It is a super-2 number, since 2×57196889² = 6542968222556642, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57196889.

It is not a weakly prime, because it can be changed into another prime (57196879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28598444 + 28598445.

It is an arithmetic number, because the mean of its divisors is an integer number (28598445).

Almost surely, 2^57196889 is an apocalyptic number.

It is an amenable number.

57196889 is a deficient number, since it is larger than the sum of its proper divisors (1).

57196889 is an equidigital number, since it uses as much as digits as its factorization.

57196889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 53.

The square root of 57196889 is about 7562.8624871804. The cubic root of 57196889 is about 385.2927194224.

It can be divided in two parts, 57196 and 889, that added together give a palindrome (58085).

The spelling of 57196889 in words is "fifty-seven million, one hundred ninety-six thousand, eight hundred eighty-nine".