49105009 has 2 divisors, whose sum is σ = 49105010. Its totient is φ = 49105008.

The previous prime is 49104943. The next prime is 49105013. The reversal of 49105009 is 90050194.

49105009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31674384 + 17430625 = 5628^2 + 4175^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49105009 is a prime.

It is a super-2 number, since 2×49105009² = 4822603817780162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (49105039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24552504 + 24552505.

It is an arithmetic number, because the mean of its divisors is an integer number (24552505).

Almost surely, 2^49105009 is an apocalyptic number.

It is an amenable number.

49105009 is a deficient number, since it is larger than the sum of its proper divisors (1).

49105009 is an equidigital number, since it uses as much as digits as its factorization.

49105009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 49105009 is about 7007.4966286114. The cubic root of 49105009 is about 366.1917858762.

The spelling of 49105009 in words is "forty-nine million, one hundred five thousand, nine".