49913905 has 4 divisors (see below), whose sum is σ = 59896692. Its totient is φ = 39931120.

The previous prime is 49913873. The next prime is 49913917. The reversal of 49913905 is 50931994.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33454656 + 16459249 = 5784^2 + 4057^2 .

It is not a de Polignac number, because 49913905 - 2⁵ = 49913873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4991386 + ... + 4991395.

It is an arithmetic number, because the mean of its divisors is an integer number (14974173).

Almost surely, 2^49913905 is an apocalyptic number.

It is an amenable number.

49913905 is a deficient number, since it is larger than the sum of its proper divisors (9982787).

49913905 is an equidigital number, since it uses as much as digits as its factorization.

49913905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9982786.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 49913905 is about 7064.9773531130. The cubic root of 49913905 is about 368.1915772540.

The spelling of 49913905 in words is "forty-nine million, nine hundred thirteen thousand, nine hundred five".