51164089 has 2 divisors, whose sum is σ = 51164090. Its totient is φ = 51164088.

The previous prime is 51164077. The next prime is 51164111. The reversal of 51164089 is 98046115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48066489 + 3097600 = 6933^2 + 1760^2 .

It is a cyclic number.

It is not a de Polignac number, because 51164089 - 2⁷ = 51163961 is a prime.

It is not a weakly prime, because it can be changed into another prime (51164039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25582044 + 25582045.

It is an arithmetic number, because the mean of its divisors is an integer number (25582045).

Almost surely, 2^51164089 is an apocalyptic number.

It is an amenable number.

51164089 is a deficient number, since it is larger than the sum of its proper divisors (1).

51164089 is an equidigital number, since it uses as much as digits as its factorization.

51164089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 51164089 is about 7152.9077304268. The cubic root of 51164089 is about 371.2402717506.

The spelling of 51164089 in words is "fifty-one million, one hundred sixty-four thousand, eighty-nine".