13053510521 has 2 divisors, whose sum is σ = 13053510522. Its totient is φ = 13053510520.

The previous prime is 13053510499. The next prime is 13053510527. The reversal of 13053510521 is 12501535031.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10652510521 + 2401000000 = 103211^2 + 49000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13053510521 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13053510527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6526755260 + 6526755261.

It is an arithmetic number, because the mean of its divisors is an integer number (6526755261).

Almost surely, 2^13053510521 is an apocalyptic number.

It is an amenable number.

13053510521 is a deficient number, since it is larger than the sum of its proper divisors (1).

13053510521 is an equidigital number, since it uses as much as digits as its factorization.

13053510521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2250, while the sum is 26.

The spelling of 13053510521 in words is "thirteen billion, fifty-three million, five hundred ten thousand, five hundred twenty-one".