51115327 has 2 divisors, whose sum is σ = 51115328. Its totient is φ = 51115326.

The previous prime is 51115297. The next prime is 51115331. The reversal of 51115327 is 72351115.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51115327 - 2⁷ = 51115199 is a prime.

It is a super-2 number, since 2×51115327² = 5225553308633858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51115357) 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, 25557663 + 25557664.

It is an arithmetic number, because the mean of its divisors is an integer number (25557664).

Almost surely, 2^51115327 is an apocalyptic number.

51115327 is a deficient number, since it is larger than the sum of its proper divisors (1).

51115327 is an equidigital number, since it uses as much as digits as its factorization.

51115327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1050, while the sum is 25.

The square root of 51115327 is about 7149.4983740120. The cubic root of 51115327 is about 371.1222972599.

The spelling of 51115327 in words is "fifty-one million, one hundred fifteen thousand, three hundred twenty-seven".