49516009 has 2 divisors, whose sum is σ = 49516010. Its totient is φ = 49516008.

The previous prime is 49515997. The next prime is 49516013. The reversal of 49516009 is 90061594.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42771600 + 6744409 = 6540^2 + 2597^2 .

It is a cyclic number.

It is not a de Polignac number, because 49516009 - 2⁹ = 49515497 is a prime.

It is not a weakly prime, because it can be changed into another prime (49516099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24758004 + 24758005.

It is an arithmetic number, because the mean of its divisors is an integer number (24758005).

Almost surely, 2^49516009 is an apocalyptic number.

It is an amenable number.

49516009 is a deficient number, since it is larger than the sum of its proper divisors (1).

49516009 is an equidigital number, since it uses as much as digits as its factorization.

49516009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 49516009 is about 7036.7612578515. The cubic root of 49516009 is about 367.2106016031.

The spelling of 49516009 in words is "forty-nine million, five hundred sixteen thousand, nine".