53552244225509 has 2 divisors, whose sum is σ = 53552244225510. Its totient is φ = 53552244225508.

The previous prime is 53552244225463. The next prime is 53552244225563. The reversal of 53552244225509 is 90552244225535.

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., 46445887874884 + 7106356350625 = 6815122^2 + 2665775^2 .

It is a cyclic number.

It is not a de Polignac number, because 53552244225509 - 2⁸ = 53552244225253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53552244125509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26776122112754 + 26776122112755.

It is an arithmetic number, because the mean of its divisors is an integer number (26776122112755).

Almost surely, 2^{53552244225509} is an apocalyptic number.

It is an amenable number.

53552244225509 is a deficient number, since it is larger than the sum of its proper divisors (1).

53552244225509 is an equidigital number, since it uses as much as digits as its factorization.

53552244225509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600000, while the sum is 53.

The spelling of 53552244225509 in words is "fifty-three trillion, five hundred fifty-two billion, two hundred forty-four million, two hundred twenty-five thousand, five hundred nine".