49932991 has 2 divisors, whose sum is σ = 49932992. Its totient is φ = 49932990.

The previous prime is 49932989. The next prime is 49933027. The reversal of 49932991 is 19923994.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49932991 - 2¹ = 49932989 is a prime.

Together with 49932989, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49932901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24966495 + 24966496.

It is an arithmetic number, because the mean of its divisors is an integer number (24966496).

Almost surely, 2^49932991 is an apocalyptic number.

49932991 is a deficient number, since it is larger than the sum of its proper divisors (1).

49932991 is an equidigital number, since it uses as much as digits as its factorization.

49932991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 157464, while the sum is 46.

The square root of 49932991 is about 7066.3279714432. The cubic root of 49932991 is about 368.2385007779.

The spelling of 49932991 in words is "forty-nine million, nine hundred thirty-two thousand, nine hundred ninety-one".