49996909 has 2 divisors, whose sum is σ = 49996910. Its totient is φ = 49996908.

The previous prime is 49996829. The next prime is 49996913. The reversal of 49996909 is 90969994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44222500 + 5774409 = 6650^2 + 2403^2 .

It is a cyclic number.

It is not a de Polignac number, because 49996909 - 2⁷ = 49996781 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49996909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49996409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24998454 + 24998455.

It is an arithmetic number, because the mean of its divisors is an integer number (24998455).

Almost surely, 2^49996909 is an apocalyptic number.

It is an amenable number.

49996909 is a deficient number, since it is larger than the sum of its proper divisors (1).

49996909 is an equidigital number, since it uses as much as digits as its factorization.

49996909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1417176, while the sum is 55.

The square root of 49996909 is about 7070.8492417814. The cubic root of 49996909 is about 368.3955581467.

It can be divided in two parts, 49996 and 909, that added together give a palindrome (50905).

The spelling of 49996909 in words is "forty-nine million, nine hundred ninety-six thousand, nine hundred nine".