49209269 has 2 divisors, whose sum is σ = 49209270. Its totient is φ = 49209268.

The previous prime is 49209263. The next prime is 49209283. The reversal of 49209269 is 96290294.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49140100 + 69169 = 7010^2 + 263^2 .

It is a cyclic number.

It is not a de Polignac number, because 49209269 - 2⁴ = 49209253 is a prime.

It is a super-2 number, since 2×49209269² = 4843104311028722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49209263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24604634 + 24604635.

It is an arithmetic number, because the mean of its divisors is an integer number (24604635).

Almost surely, 2^49209269 is an apocalyptic number.

It is an amenable number.

49209269 is a deficient number, since it is larger than the sum of its proper divisors (1).

49209269 is an equidigital number, since it uses as much as digits as its factorization.

49209269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 49209269 is about 7014.9318599684. The cubic root of 49209269 is about 366.4507694129.

The spelling of 49209269 in words is "forty-nine million, two hundred nine thousand, two hundred sixty-nine".