50931993 has 32 divisors (see below), whose sum is σ = 80372736. Its totient is φ = 28087488.

The previous prime is 50931961. The next prime is 50931997. The reversal of 50931993 is 39913905.

It is not a de Polignac number, because 50931993 - 2⁵ = 50931961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50931997) 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, 74230 + ... + 74912.

It is an arithmetic number, because the mean of its divisors is an integer number (2511648).

Almost surely, 2^50931993 is an apocalyptic number.

50931993 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

50931993 is a deficient number, since it is larger than the sum of its proper divisors (29440743).

50931993 is a wasteful number, since it uses less digits than its factorization.

50931993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813.

The product of its (nonzero) digits is 32805, while the sum is 39.

The square root of 50931993 is about 7136.6653977891. The cubic root of 50931993 is about 370.6780675367.

The spelling of 50931993 in words is "fifty million, nine hundred thirty-one thousand, nine hundred ninety-three".