13155235244025 has 24 divisors (see below), whose sum is σ = 24857130214464. Its totient is φ = 6013821825600.

The previous prime is 13155235243973. The next prime is 13155235244111. The reversal of 13155235244025 is 52044253255131.

It is not a de Polignac number, because 13155235244025 - 2¹⁸ = 13155234981881 is a prime.

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, 12528794946 + ... + 12528795995.

It is an arithmetic number, because the mean of its divisors is an integer number (1035713758936).

Almost surely, 2^{13155235244025} is an apocalyptic number.

13155235244025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13155235244025 is a deficient number, since it is larger than the sum of its proper divisors (11701894970439).

13155235244025 is a wasteful number, since it uses less digits than its factorization.

13155235244025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25057590961 (or 25057590956 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 42.

Adding to 13155235244025 its reverse (52044253255131), we get a palindrome (65199488499156).

The spelling of 13155235244025 in words is "thirteen trillion, one hundred fifty-five billion, two hundred thirty-five million, two hundred forty-four thousand, twenty-five".