50815131659 has 2 divisors, whose sum is σ = 50815131660. Its totient is φ = 50815131658.

The previous prime is 50815131629. The next prime is 50815131683. The reversal of 50815131659 is 95613151805.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50815131659 is a prime.

It is not a weakly prime, because it can be changed into another prime (50815131629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25407565829 + 25407565830.

It is an arithmetic number, because the mean of its divisors is an integer number (25407565830).

Almost surely, 2^50815131659 is an apocalyptic number.

50815131659 is a deficient number, since it is larger than the sum of its proper divisors (1).

50815131659 is an equidigital number, since it uses as much as digits as its factorization.

50815131659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162000, while the sum is 44.

The spelling of 50815131659 in words is "fifty billion, eight hundred fifteen million, one hundred thirty-one thousand, six hundred fifty-nine".