53422909 has 2 divisors, whose sum is σ = 53422910. Its totient is φ = 53422908.

The previous prime is 53422849. The next prime is 53422913. The reversal of 53422909 is 90922435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52157284 + 1265625 = 7222^2 + 1125^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53422909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53422949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26711454 + 26711455.

It is an arithmetic number, because the mean of its divisors is an integer number (26711455).

Almost surely, 2^53422909 is an apocalyptic number.

It is an amenable number.

53422909 is a deficient number, since it is larger than the sum of its proper divisors (1).

53422909 is an equidigital number, since it uses as much as digits as its factorization.

53422909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 53422909 is about 7309.0976871294. The cubic root of 53422909 is about 376.6250285070.

The spelling of 53422909 in words is "fifty-three million, four hundred twenty-two thousand, nine hundred nine".