51297119 has 2 divisors, whose sum is σ = 51297120. Its totient is φ = 51297118.

The previous prime is 51297097. The next prime is 51297167. The reversal of 51297119 is 91179215.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51297119 is a prime.

It is a super-2 number, since 2×51297119² = 5262788835400322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51297919) 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, 25648559 + 25648560.

It is an arithmetic number, because the mean of its divisors is an integer number (25648560).

Almost surely, 2^51297119 is an apocalyptic number.

51297119 is a deficient number, since it is larger than the sum of its proper divisors (1).

51297119 is an equidigital number, since it uses as much as digits as its factorization.

51297119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5670, while the sum is 35.

The square root of 51297119 is about 7162.2007092792. The cubic root of 51297119 is about 371.5617430121.

The spelling of 51297119 in words is "fifty-one million, two hundred ninety-seven thousand, one hundred nineteen".