51160997 has 2 divisors, whose sum is σ = 51160998. Its totient is φ = 51160996.

The previous prime is 51160961. The next prime is 51161021. The reversal of 51160997 is 79906115.

51160997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37625956 + 13535041 = 6134^2 + 3679^2 .

It is a cyclic number.

It is not a de Polignac number, because 51160997 - 2¹⁶ = 51095461 is a prime.

It is a super-2 number, since 2×51160997² = 5234895228068018, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51160997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51160937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25580498 + 25580499.

It is an arithmetic number, because the mean of its divisors is an integer number (25580499).

Almost surely, 2^51160997 is an apocalyptic number.

It is an amenable number.

51160997 is a deficient number, since it is larger than the sum of its proper divisors (1).

51160997 is an equidigital number, since it uses as much as digits as its factorization.

51160997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17010, while the sum is 38.

The square root of 51160997 is about 7152.6915912823. The cubic root of 51160997 is about 371.2327932107.

The spelling of 51160997 in words is "fifty-one million, one hundred sixty thousand, nine hundred ninety-seven".