49921131 has 16 divisors (see below), whose sum is σ = 72092160. Its totient is φ = 30544800.

The previous prime is 49921117. The next prime is 49921141. The reversal of 49921131 is 13112994.

It is not a de Polignac number, because 49921131 - 2⁵ = 49921099 is a prime.

It is a super-2 number, since 2×49921131² = 4984238640638322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49921141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3406 + ... + 10556.

It is an arithmetic number, because the mean of its divisors is an integer number (4505760).

Almost surely, 2^49921131 is an apocalyptic number.

49921131 is a deficient number, since it is larger than the sum of its proper divisors (22171029).

49921131 is a wasteful number, since it uses less digits than its factorization.

49921131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7346.

The product of its digits is 1944, while the sum is 30.

The square root of 49921131 is about 7065.4887304418. The cubic root of 49921131 is about 368.2093440063.

The spelling of 49921131 in words is "forty-nine million, nine hundred twenty-one thousand, one hundred thirty-one".