50642660525 has 6 divisors (see below), whose sum is σ = 62796899082. Its totient is φ = 40514128400.

The previous prime is 50642660507. The next prime is 50642660533. The reversal of 50642660525 is 52506624605.

It can be written as a sum of positive squares in 3 ways, for example, as 15159026884 + 35483633641 = 123122^2 + 188371^2 .

It is not a de Polignac number, because 50642660525 - 2⁸ = 50642660269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1012853186 + ... + 1012853235.

It is an arithmetic number, because the mean of its divisors is an integer number (10466149847).

Almost surely, 2^50642660525 is an apocalyptic number.

It is an amenable number.

50642660525 is a deficient number, since it is larger than the sum of its proper divisors (12154238557).

50642660525 is a wasteful number, since it uses less digits than its factorization.

50642660525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025706431 (or 2025706426 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 50642660525 in words is "fifty billion, six hundred forty-two million, six hundred sixty thousand, five hundred twenty-five".