50331313313 has 32 divisors (see below), whose sum is σ = 55628881920. Its totient is φ = 45349058560.

The previous prime is 50331313289. The next prime is 50331313349. The reversal of 50331313313 is 31331313305.

It is a happy number.

It is not a de Polignac number, because 50331313313 - 2¹⁶ = 50331247777 is a prime.

It is a super-2 number, since 2×50331313313² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50331313393) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7279328 + ... + 7286238.

It is an arithmetic number, because the mean of its divisors is an integer number (1738402560).

Almost surely, 2^50331313313 is an apocalyptic number.

50331313313 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

50331313313 is a deficient number, since it is larger than the sum of its proper divisors (5297568607).

50331313313 is a wasteful number, since it uses less digits than its factorization.

50331313313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7177.

The product of its (nonzero) digits is 3645, while the sum is 26.

Adding to 50331313313 its reverse (31331313305), we get a palindrome (81662626618).

The spelling of 50331313313 in words is "fifty billion, three hundred thirty-one million, three hundred thirteen thousand, three hundred thirteen".