50774570657 has 4 divisors (see below), whose sum is σ = 50775084180. Its totient is φ = 50774057136.

The previous prime is 50774570629. The next prime is 50774570699. The reversal of 50774570657 is 75607547705.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 75607547705 = 5 ⋅15121509541.

It can be written as a sum of positive squares in 2 ways, for example, as 6844087441 + 43930483216 = 82729^2 + 209596^2 .

It is a cyclic number.

It is not a de Polignac number, because 50774570657 - 2¹⁶ = 50774505121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50774570599 and 50774570608.

It is not an unprimeable number, because it can be changed into a prime (50774500657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56258 + ... + 323595.

It is an arithmetic number, because the mean of its divisors is an integer number (12693771045).

Almost surely, 2^50774570657 is an apocalyptic number.

It is an amenable number.

50774570657 is a deficient number, since it is larger than the sum of its proper divisors (513523).

50774570657 is a wasteful number, since it uses less digits than its factorization.

50774570657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513522.

The product of its (nonzero) digits is 7203000, while the sum is 53.

The spelling of 50774570657 in words is "fifty billion, seven hundred seventy-four million, five hundred seventy thousand, six hundred fifty-seven".