50569742477 has 2 divisors, whose sum is σ = 50569742478. Its totient is φ = 50569742476.

The previous prime is 50569742437. The next prime is 50569742501. The reversal of 50569742477 is 77424796505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34605672676 + 15964069801 = 186026^2 + 126349^2 .

It is a cyclic number.

It is not a de Polignac number, because 50569742477 - 2¹⁸ = 50569480333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50569742407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25284871238 + 25284871239.

It is an arithmetic number, because the mean of its divisors is an integer number (25284871239).

Almost surely, 2^50569742477 is an apocalyptic number.

It is an amenable number.

50569742477 is a deficient number, since it is larger than the sum of its proper divisors (1).

50569742477 is an equidigital number, since it uses as much as digits as its factorization.

50569742477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14817600, while the sum is 56.

The spelling of 50569742477 in words is "fifty billion, five hundred sixty-nine million, seven hundred forty-two thousand, four hundred seventy-seven".