49997903 has 2 divisors, whose sum is σ = 49997904. Its totient is φ = 49997902.

The previous prime is 49997897. The next prime is 49997933. The reversal of 49997903 is 30979994.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49997903 - 2¹⁶ = 49932367 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49997933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24998951 + 24998952.

It is an arithmetic number, because the mean of its divisors is an integer number (24998952).

Almost surely, 2^49997903 is an apocalyptic number.

49997903 is a deficient number, since it is larger than the sum of its proper divisors (1).

49997903 is an equidigital number, since it uses as much as digits as its factorization.

49997903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 551124, while the sum is 50.

The square root of 49997903 is about 7070.9195300187. The cubic root of 49997903 is about 368.3979995160.

The spelling of 49997903 in words is "forty-nine million, nine hundred ninety-seven thousand, nine hundred three".