13155321224525 has 24 divisors (see below), whose sum is σ = 16620431402880. Its totient is φ = 10327289581440.

The previous prime is 13155321224519. The next prime is 13155321224531. The reversal of 13155321224525 is 52542212355131.

It is an interprime number because it is at equal distance from previous prime (13155321224519) and next prime (13155321224531).

It is a de Polignac number, because none of the positive numbers 2^k-13155321224525 is a prime.

It is a super-2 number, since 2×13155321224525² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20110352 + ... + 20754201.

It is an arithmetic number, because the mean of its divisors is an integer number (692517975120).

Almost surely, 2^{13155321224525} is an apocalyptic number.

It is an amenable number.

13155321224525 is a deficient number, since it is larger than the sum of its proper divisors (3465110178355).

13155321224525 is a wasteful number, since it uses less digits than its factorization.

13155321224525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40864805 (or 40864800 counting only the distinct ones).

The product of its digits is 360000, while the sum is 41.

Adding to 13155321224525 its reverse (52542212355131), we get a palindrome (65697533579656).

The spelling of 13155321224525 in words is "thirteen trillion, one hundred fifty-five billion, three hundred twenty-one million, two hundred twenty-four thousand, five hundred twenty-five".