13355223531525 has 48 divisors (see below), whose sum is σ = 25600737697920. Its totient is φ = 6813099532800.

The previous prime is 13355223531511. The next prime is 13355223531539. The reversal of 13355223531525 is 52513532255331.

13355223531525 is a `hidden beast` number, since 1 + 3 + 3 + 5 + 52 + 23 + 53 + 1 + 525 = 666.

It is an interprime number because it is at equal distance from previous prime (13355223531511) and next prime (13355223531539).

It is not a de Polignac number, because 13355223531525 - 2²⁶ = 13355156422661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 430104396 + ... + 430135445.

It is an arithmetic number, because the mean of its divisors is an integer number (533348702040).

Almost surely, 2^{13355223531525} is an apocalyptic number.

13355223531525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13355223531525 is a deficient number, since it is larger than the sum of its proper divisors (12245514166395).

13355223531525 is a wasteful number, since it uses less digits than its factorization.

13355223531525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860239883 (or 860239872 counting only the distinct ones).

The product of its digits is 2025000, while the sum is 45.

Adding to 13355223531525 its reverse (52513532255331), we get a palindrome (65868755786856).

The spelling of 13355223531525 in words is "thirteen trillion, three hundred fifty-five billion, two hundred twenty-three million, five hundred thirty-one thousand, five hundred twenty-five".