49519931 has 2 divisors, whose sum is σ = 49519932. Its totient is φ = 49519930.

The previous prime is 49519913. The next prime is 49519973. The reversal of 49519931 is 13991594.

Together with previous prime (49519913) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49519931 is a prime.

It is a super-2 number, since 2×49519931² = 4904447132489522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49519831) 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 as a sum of consecutive naturals, namely, 24759965 + 24759966.

It is an arithmetic number, because the mean of its divisors is an integer number (24759966).

Almost surely, 2^49519931 is an apocalyptic number.

49519931 is a deficient number, since it is larger than the sum of its proper divisors (1).

49519931 is an equidigital number, since it uses as much as digits as its factorization.

49519931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43740, while the sum is 41.

The square root of 49519931 is about 7037.0399316758. The cubic root of 49519931 is about 367.2202965280.

The spelling of 49519931 in words is "forty-nine million, five hundred nineteen thousand, nine hundred thirty-one".