13531202025 has 24 divisors (see below), whose sum is σ = 24405369504. Its totient is φ = 6560582400.

The previous prime is 13531201951. The next prime is 13531202029. The reversal of 13531202025 is 52020213531.

It is a happy number.

It is not a de Polignac number, because 13531202025 - 2¹² = 13531197929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13531201986 and 13531202004.

It is not an unprimeable number, because it can be changed into a prime (13531202029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8199904 + ... + 8201553.

It is an arithmetic number, because the mean of its divisors is an integer number (1016890396).

Almost surely, 2^13531202025 is an apocalyptic number.

13531202025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13531202025 is a deficient number, since it is larger than the sum of its proper divisors (10874167479).

13531202025 is a wasteful number, since it uses less digits than its factorization.

13531202025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16401481 (or 16401476 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 13531202025 its reverse (52020213531), we get a palindrome (65551415556).

The spelling of 13531202025 in words is "thirteen billion, five hundred thirty-one million, two hundred two thousand, twenty-five".