49999903 has 2 divisors, whose sum is σ = 49999904. Its totient is φ = 49999902.

The previous prime is 49999897. The next prime is 49999921. The reversal of 49999903 is 30999994.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49999903 - 2¹⁷ = 49868831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49999403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24999951 + 24999952.

It is an arithmetic number, because the mean of its divisors is an integer number (24999952).

Almost surely, 2^49999903 is an apocalyptic number.

49999903 is a deficient number, since it is larger than the sum of its proper divisors (1).

49999903 is an equidigital number, since it uses as much as digits as its factorization.

49999903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 708588, while the sum is 52.

The square root of 49999903 is about 7071.0609529264. The cubic root of 49999903 is about 368.4029116298.

The spelling of 49999903 in words is "forty-nine million, nine hundred ninety-nine thousand, nine hundred three".