49969009 has 2 divisors, whose sum is σ = 49969010. Its totient is φ = 49969008.

The previous prime is 49968959. The next prime is 49969013. The reversal of 49969009 is 90096994.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27615025 + 22353984 = 5255^2 + 4728^2 .

It is a cyclic number.

It is not a de Polignac number, because 49969009 - 2¹³ = 49960817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49969009.

It is not a weakly prime, because it can be changed into another prime (49969079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24984504 + 24984505.

It is an arithmetic number, because the mean of its divisors is an integer number (24984505).

Almost surely, 2^49969009 is an apocalyptic number.

It is an amenable number.

49969009 is a deficient number, since it is larger than the sum of its proper divisors (1).

49969009 is an equidigital number, since it uses as much as digits as its factorization.

49969009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 157464, while the sum is 46.

The square root of 49969009 is about 7068.8760775671. The cubic root of 49969009 is about 368.3270195861.

The spelling of 49969009 in words is "forty-nine million, nine hundred sixty-nine thousand, nine".