50997696571 has 2 divisors, whose sum is σ = 50997696572. Its totient is φ = 50997696570.

The previous prime is 50997696509. The next prime is 50997696583. The reversal of 50997696571 is 17569679905.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50997696571 - 2⁷ = 50997696443 is a prime.

It is not a weakly prime, because it can be changed into another prime (50997690571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25498848285 + 25498848286.

It is an arithmetic number, because the mean of its divisors is an integer number (25498848286).

Almost surely, 2^50997696571 is an apocalyptic number.

50997696571 is a deficient number, since it is larger than the sum of its proper divisors (1).

50997696571 is an equidigital number, since it uses as much as digits as its factorization.

50997696571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32148900, while the sum is 64.

The spelling of 50997696571 in words is "fifty billion, nine hundred ninety-seven million, six hundred ninety-six thousand, five hundred seventy-one".