49957931 has 4 divisors (see below), whose sum is σ = 50167200. Its totient is φ = 49748664.

The previous prime is 49957927. The next prime is 49957961. The reversal of 49957931 is 13975994.

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 49957931 - 2² = 49957927 is a prime.

It is a super-2 number, since 2×49957931² = 4991589739601522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49957961) 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, 104276 + ... + 104753.

It is an arithmetic number, because the mean of its divisors is an integer number (12541800).

Almost surely, 2^49957931 is an apocalyptic number.

49957931 is a deficient number, since it is larger than the sum of its proper divisors (209269).

49957931 is a wasteful number, since it uses less digits than its factorization.

49957931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209268.

The product of its digits is 306180, while the sum is 47.

The square root of 49957931 is about 7068.0924583653. The cubic root of 49957931 is about 368.2997985253.

The spelling of 49957931 in words is "forty-nine million, nine hundred fifty-seven thousand, nine hundred thirty-one".