50689670557 has 2 divisors, whose sum is σ = 50689670558. Its totient is φ = 50689670556.

The previous prime is 50689670527. The next prime is 50689670561. The reversal of 50689670557 is 75507698605.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48432565476 + 2257105081 = 220074^2 + 47509^2 .

It is a cyclic number.

It is not a de Polignac number, because 50689670557 - 2¹¹ = 50689668509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50689670527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25344835278 + 25344835279.

It is an arithmetic number, because the mean of its divisors is an integer number (25344835279).

Almost surely, 2^50689670557 is an apocalyptic number.

It is an amenable number.

50689670557 is a deficient number, since it is larger than the sum of its proper divisors (1).

50689670557 is an equidigital number, since it uses as much as digits as its factorization.

50689670557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876000, while the sum is 58.

The spelling of 50689670557 in words is "fifty billion, six hundred eighty-nine million, six hundred seventy thousand, five hundred fifty-seven".