49103009 has 2 divisors, whose sum is σ = 49103010. Its totient is φ = 49103008.

The previous prime is 49102979. The next prime is 49103063. The reversal of 49103009 is 90030194.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47886400 + 1216609 = 6920^2 + 1103^2 .

It is a cyclic number.

It is not a de Polignac number, because 49103009 - 2¹² = 49098913 is a prime.

It is a super-2 number, since 2×49103009² = 4822210985708162, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (49103209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24551504 + 24551505.

It is an arithmetic number, because the mean of its divisors is an integer number (24551505).

Almost surely, 2^49103009 is an apocalyptic number.

It is an amenable number.

49103009 is a deficient number, since it is larger than the sum of its proper divisors (1).

49103009 is an equidigital number, since it uses as much as digits as its factorization.

49103009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 49103009 is about 7007.3539228442. The cubic root of 49103009 is about 366.1868142618.

The spelling of 49103009 in words is "forty-nine million, one hundred three thousand, nine".