53249940930509 has 2 divisors, whose sum is σ = 53249940930510. Its totient is φ = 53249940930508.

The previous prime is 53249940930503. The next prime is 53249940930521. The reversal of 53249940930509 is 90503904994235.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38545745424484 + 14704195506025 = 6208522^2 + 3834605^2 .

It is a cyclic number.

It is not a de Polignac number, because 53249940930509 - 2²⁸ = 53249672495053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53249940930503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26624970465254 + 26624970465255.

It is an arithmetic number, because the mean of its divisors is an integer number (26624970465255).

Almost surely, 2^{53249940930509} is an apocalyptic number.

It is an amenable number.

53249940930509 is a deficient number, since it is larger than the sum of its proper divisors (1).

53249940930509 is an equidigital number, since it uses as much as digits as its factorization.

53249940930509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47239200, while the sum is 62.

The spelling of 53249940930509 in words is "fifty-three trillion, two hundred forty-nine billion, nine hundred forty million, nine hundred thirty thousand, five hundred nine".