49999423 has 2 divisors, whose sum is σ = 49999424. Its totient is φ = 49999422.

The previous prime is 49999409. The next prime is 49999427. The reversal of 49999423 is 32499994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49999423 - 2⁹ = 49998911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49999427) 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, 24999711 + 24999712.

It is an arithmetic number, because the mean of its divisors is an integer number (24999712).

Almost surely, 2^49999423 is an apocalyptic number.

49999423 is a deficient number, since it is larger than the sum of its proper divisors (1).

49999423 is an equidigital number, since it uses as much as digits as its factorization.

49999423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 629856, while the sum is 49.

The square root of 49999423 is about 7071.0270116865. The cubic root of 49999423 is about 368.4017327345.

The spelling of 49999423 in words is "forty-nine million, nine hundred ninety-nine thousand, four hundred twenty-three".