49999931 has 16 divisors (see below), whose sum is σ = 53115648. Its totient is φ = 47001600.

The previous prime is 49999921. The next prime is 49999991. The reversal of 49999931 is 13999994.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49999931 is a prime.

It is a super-2 number, since 2×49999931² = 4999986200009522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49999921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258971 + ... + 259163.

It is an arithmetic number, because the mean of its divisors is an integer number (3319728).

Almost surely, 2^49999931 is an apocalyptic number.

49999931 is a deficient number, since it is larger than the sum of its proper divisors (3115717).

49999931 is a wasteful number, since it uses less digits than its factorization.

49999931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422.

The product of its digits is 708588, while the sum is 53.

The square root of 49999931 is about 7071.0629328270. The cubic root of 49999931 is about 368.4029803985.

It can be divided in two parts, 4999993 and 1, that added together give a palindrome (4999994).

The spelling of 49999931 in words is "forty-nine million, nine hundred ninety-nine thousand, nine hundred thirty-one".