49942493 has 2 divisors, whose sum is σ = 49942494. Its totient is φ = 49942492.

The previous prime is 49942441. The next prime is 49942513. The reversal of 49942493 is 39424994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49942489 + 4 = 7067^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 49942493 - 2⁸ = 49942237 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49942693) 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, 24971246 + 24971247.

It is an arithmetic number, because the mean of its divisors is an integer number (24971247).

Almost surely, 2^49942493 is an apocalyptic number.

It is an amenable number.

49942493 is a deficient number, since it is larger than the sum of its proper divisors (1).

49942493 is an equidigital number, since it uses as much as digits as its factorization.

49942493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 44.

The square root of 49942493 is about 7067.0002830055. Note that the first 3 decimals coincide. The cubic root of 49942493 is about 368.2618572818.

The spelling of 49942493 in words is "forty-nine million, nine hundred forty-two thousand, four hundred ninety-three".