13530322501 has 2 divisors, whose sum is σ = 13530322502. Its totient is φ = 13530322500.

The previous prime is 13530322499. The next prime is 13530322511. The reversal of 13530322501 is 10522303531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13378392225 + 151930276 = 115665^2 + 12326^2 .

It is a cyclic number.

It is not a de Polignac number, because 13530322501 - 2¹ = 13530322499 is a prime.

Together with 13530322499, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13530322511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765161250 + 6765161251.

It is an arithmetic number, because the mean of its divisors is an integer number (6765161251).

Almost surely, 2^13530322501 is an apocalyptic number.

It is an amenable number.

13530322501 is a deficient number, since it is larger than the sum of its proper divisors (1).

13530322501 is an equidigital number, since it uses as much as digits as its factorization.

13530322501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 25.

The spelling of 13530322501 in words is "thirteen billion, five hundred thirty million, three hundred twenty-two thousand, five hundred one".