49988831 has 2 divisors, whose sum is σ = 49988832. Its totient is φ = 49988830.

The previous prime is 49988803. The next prime is 49988843. The reversal of 49988831 is 13888994.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49988831 is a prime.

It is a super-2 number, since 2×49988831² = 4997766449493122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49988831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49988801) 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, 24994415 + 24994416.

It is an arithmetic number, because the mean of its divisors is an integer number (24994416).

Almost surely, 2^49988831 is an apocalyptic number.

49988831 is a deficient number, since it is larger than the sum of its proper divisors (1).

49988831 is an equidigital number, since it uses as much as digits as its factorization.

49988831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 50.

The square root of 49988831 is about 7070.2780001921. The cubic root of 49988831 is about 368.3757165227.

The spelling of 49988831 in words is "forty-nine million, nine hundred eighty-eight thousand, eight hundred thirty-one".