50315136261 has 64 divisors (see below), whose sum is σ = 75321630720. Its totient is φ = 29682132480.

The previous prime is 50315136233. The next prime is 50315136269. The reversal of 50315136261 is 16263151305.

It is not a de Polignac number, because 50315136261 - 2⁷ = 50315136133 is a prime.

It is a super-2 number, since 2×50315136261² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50315136269) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14654601 + ... + 14658033.

It is an arithmetic number, because the mean of its divisors is an integer number (1176900480).

Almost surely, 2^50315136261 is an apocalyptic number.

It is an amenable number.

50315136261 is a deficient number, since it is larger than the sum of its proper divisors (25006494459).

50315136261 is a wasteful number, since it uses less digits than its factorization.

50315136261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3666.

The product of its (nonzero) digits is 16200, while the sum is 33.

Adding to 50315136261 its reverse (16263151305), we get a palindrome (66578287566).

The spelling of 50315136261 in words is "fifty billion, three hundred fifteen million, one hundred thirty-six thousand, two hundred sixty-one".