50515679 has 2 divisors, whose sum is σ = 50515680. Its totient is φ = 50515678.

The previous prime is 50515667. The next prime is 50515697. The reversal of 50515679 is 97651505.

Together with next prime (50515697) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50515679 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50515579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25257839 + 25257840.

It is an arithmetic number, because the mean of its divisors is an integer number (25257840).

Almost surely, 2^50515679 is an apocalyptic number.

50515679 is a deficient number, since it is larger than the sum of its proper divisors (1).

50515679 is an equidigital number, since it uses as much as digits as its factorization.

50515679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47250, while the sum is 38.

The square root of 50515679 is about 7107.4382867528. The cubic root of 50515679 is about 369.6653389815.

The spelling of 50515679 in words is "fifty million, five hundred fifteen thousand, six hundred seventy-nine".