50115813 has 32 divisors (see below), whose sum is σ = 77811840. Its totient is φ = 28354560.

The previous prime is 50115761. The next prime is 50115829. The reversal of 50115813 is 31851105.

It is not a de Polignac number, because 50115813 - 2⁸ = 50115557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50115893) 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, 87793 + ... + 88361.

It is an arithmetic number, because the mean of its divisors is an integer number (2431620).

Almost surely, 2^50115813 is an apocalyptic number.

It is an amenable number.

50115813 is a deficient number, since it is larger than the sum of its proper divisors (27696027).

50115813 is a wasteful number, since it uses less digits than its factorization.

50115813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757.

The product of its (nonzero) digits is 600, while the sum is 24.

The square root of 50115813 is about 7079.2522910262. The cubic root of 50115813 is about 368.6873696945.

Adding to 50115813 its reverse (31851105), we get a palindrome (81966918).

The spelling of 50115813 in words is "fifty million, one hundred fifteen thousand, eight hundred thirteen".