50331113531 has 4 divisors (see below), whose sum is σ = 52066669200. Its totient is φ = 48595557864.

The previous prime is 50331113527. The next prime is 50331113551. The reversal of 50331113531 is 13531113305.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50331113531 - 2² = 50331113527 is a prime.

It is a super-2 number, since 2×50331113531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50331113531.

It is not an unprimeable number, because it can be changed into a prime (50331113501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 867777791 + ... + 867777848.

It is an arithmetic number, because the mean of its divisors is an integer number (13016667300).

Almost surely, 2^50331113531 is an apocalyptic number.

50331113531 is a deficient number, since it is larger than the sum of its proper divisors (1735555669).

50331113531 is a wasteful number, since it uses less digits than its factorization.

50331113531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1735555668.

The product of its (nonzero) digits is 2025, while the sum is 26.

Adding to 50331113531 its reverse (13531113305), we get a palindrome (63862226836).

The spelling of 50331113531 in words is "fifty billion, three hundred thirty-one million, one hundred thirteen thousand, five hundred thirty-one".