13225031125 has 16 divisors (see below), whose sum is σ = 16561215216. Its totient is φ = 10543886400.

The previous prime is 13225031107. The next prime is 13225031147. The reversal of 13225031125 is 52113052231.

It can be written as a sum of positive squares in 8 ways, for example, as 1288594609 + 11936436516 = 35897^2 + 109254^2 .

It is not a de Polignac number, because 13225031125 - 2¹⁵ = 13224998357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13225031125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143922 + ... + 217171.

It is an arithmetic number, because the mean of its divisors is an integer number (1035075951).

Almost surely, 2^13225031125 is an apocalyptic number.

It is an amenable number.

13225031125 is a deficient number, since it is larger than the sum of its proper divisors (3336184091).

13225031125 is an equidigital number, since it uses as much as digits as its factorization.

13225031125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361401 (or 361391 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 13225031125 its reverse (52113052231), we get a palindrome (65338083356).

The spelling of 13225031125 in words is "thirteen billion, two hundred twenty-five million, thirty-one thousand, one hundred twenty-five".