13500052051225 has 24 divisors (see below), whose sum is σ = 17151171989112. Its totient is φ = 10534897459200.

The previous prime is 13500052051223. The next prime is 13500052051237. The reversal of 13500052051225 is 52215025000531.

13500052051225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 11292200789769 + 2207851261456 = 3360387^2 + 1485884^2 .

It is not a de Polignac number, because 13500052051225 - 2¹ = 13500052051223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13500052051223) 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, 5188549 + ... + 7343101.

It is an arithmetic number, because the mean of its divisors is an integer number (714632166213).

Almost surely, 2^{13500052051225} is an apocalyptic number.

It is an amenable number.

13500052051225 is a deficient number, since it is larger than the sum of its proper divisors (3651119937887).

13500052051225 is a wasteful number, since it uses less digits than its factorization.

13500052051225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160717 (or 2160712 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

Adding to 13500052051225 its reverse (52215025000531), we get a palindrome (65715077051756).

The spelling of 13500052051225 in words is "thirteen trillion, five hundred billion, fifty-two million, fifty-one thousand, two hundred twenty-five".