13525245551 has 4 divisors (see below), whose sum is σ = 14237100600. Its totient is φ = 12813390504.

The previous prime is 13525245541. The next prime is 13525245553. The reversal of 13525245551 is 15554252531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15554252531 = 2819 ⋅5517649.

It is a cyclic number.

It is not a de Polignac number, because 13525245551 - 2¹⁴ = 13525229167 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 (13525245553) 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, 355927496 + ... + 355927533.

It is an arithmetic number, because the mean of its divisors is an integer number (3559275150).

Almost surely, 2^13525245551 is an apocalyptic number.

13525245551 is a deficient number, since it is larger than the sum of its proper divisors (711855049).

13525245551 is an equidigital number, since it uses as much as digits as its factorization.

13525245551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711855048.

The product of its digits is 150000, while the sum is 38.

The spelling of 13525245551 in words is "thirteen billion, five hundred twenty-five million, two hundred forty-five thousand, five hundred fifty-one".