49608809 has 2 divisors, whose sum is σ = 49608810. Its totient is φ = 49608808.

The previous prime is 49608787. The next prime is 49608827. The reversal of 49608809 is 90880694.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29106025 + 20502784 = 5395^2 + 4528^2 .

It is a cyclic number.

It is not a de Polignac number, because 49608809 - 2¹² = 49604713 is a prime.

It is a super-2 number, since 2×49608809² = 4922067860796962, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49608809.

It is not a weakly prime, because it can be changed into another prime (49608859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24804404 + 24804405.

It is an arithmetic number, because the mean of its divisors is an integer number (24804405).

Almost surely, 2^49608809 is an apocalyptic number.

It is an amenable number.

49608809 is a deficient number, since it is larger than the sum of its proper divisors (1).

49608809 is an equidigital number, since it uses as much as digits as its factorization.

49608809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 49608809 is about 7043.3521138731. The cubic root of 49608809 is about 367.4398599662.

The spelling of 49608809 in words is "forty-nine million, six hundred eight thousand, eight hundred nine".