50531611365 has 12 divisors (see below), whose sum is σ = 87588126444. Its totient is φ = 26950192704.

The previous prime is 50531611357. The next prime is 50531611381. The reversal of 50531611365 is 56311613505.

50531611365 is a `hidden beast` number, since 5 + 0 + 5 + 3 + 1 + 611 + 36 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21123134244 + 29408477121 = 145338^2 + 171489^2 .

It is not a de Polignac number, because 50531611365 - 2³ = 50531611357 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 561462304 + ... + 561462393.

It is an arithmetic number, because the mean of its divisors is an integer number (7299010537).

Almost surely, 2^50531611365 is an apocalyptic number.

It is an amenable number.

50531611365 is a deficient number, since it is larger than the sum of its proper divisors (37056515079).

50531611365 is a wasteful number, since it uses less digits than its factorization.

50531611365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122924708 (or 1122924705 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 36.

The spelling of 50531611365 in words is "fifty billion, five hundred thirty-one million, six hundred eleven thousand, three hundred sixty-five".