13523344501 has 4 divisors (see below), whose sum is σ = 14318835372. Its totient is φ = 12727853632.

The previous prime is 13523344481. The next prime is 13523344507. The reversal of 13523344501 is 10544332531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5602522500 + 7920822001 = 74850^2 + 88999^2 .

It is a cyclic number.

It is not a de Polignac number, because 13523344501 - 2⁹ = 13523343989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13523344507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397745410 + ... + 397745443.

It is an arithmetic number, because the mean of its divisors is an integer number (3579708843).

Almost surely, 2^13523344501 is an apocalyptic number.

It is an amenable number.

13523344501 is a deficient number, since it is larger than the sum of its proper divisors (795490871).

13523344501 is an equidigital number, since it uses as much as digits as its factorization.

13523344501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795490870.

The product of its (nonzero) digits is 21600, while the sum is 31.

The spelling of 13523344501 in words is "thirteen billion, five hundred twenty-three million, three hundred forty-four thousand, five hundred one".