13155455225525 has 6 divisors (see below), whose sum is σ = 16312764479682. Its totient is φ = 10524364180400.

The previous prime is 13155455225483. The next prime is 13155455225573. The reversal of 13155455225525 is 52552255455131.

It can be written as a sum of positive squares in 3 ways, for example, as 505489716484 + 12649965509041 = 710978^2 + 3556679^2 .

It is not a de Polignac number, because 13155455225525 - 2³⁶ = 13086735748789 is a prime.

It is a super-2 number, since 2×13155455225525² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 263109104486 + ... + 263109104535.

It is an arithmetic number, because the mean of its divisors is an integer number (2718794079947).

Almost surely, 2^{13155455225525} is an apocalyptic number.

It is an amenable number.

13155455225525 is a deficient number, since it is larger than the sum of its proper divisors (3157309254157).

13155455225525 is an equidigital number, since it uses as much as digits as its factorization.

13155455225525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526218209031 (or 526218209026 counting only the distinct ones).

The product of its digits is 7500000, while the sum is 50.

The spelling of 13155455225525 in words is "thirteen trillion, one hundred fifty-five billion, four hundred fifty-five million, two hundred twenty-five thousand, five hundred twenty-five".