51115079 has 2 divisors, whose sum is σ = 51115080. Its totient is φ = 51115078.

The previous prime is 51115049. The next prime is 51115109. The reversal of 51115079 is 97051115.

It is a balanced prime because it is at equal distance from previous prime (51115049) and next prime (51115109).

It is a cyclic number.

It is not a de Polignac number, because 51115079 - 2¹⁶ = 51049543 is a prime.

It is a super-2 number, since 2×51115079² = 5225502602352482, 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 (51115049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25557539 + 25557540.

It is an arithmetic number, because the mean of its divisors is an integer number (25557540).

Almost surely, 2^51115079 is an apocalyptic number.

51115079 is a deficient number, since it is larger than the sum of its proper divisors (1).

51115079 is an equidigital number, since it uses as much as digits as its factorization.

51115079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1575, while the sum is 29.

The square root of 51115079 is about 7149.4810301168. The cubic root of 51115079 is about 371.1216970585.

The spelling of 51115079 in words is "fifty-one million, one hundred fifteen thousand, seventy-nine".