13056490225 has 9 divisors (see below), whose sum is σ = 16190756353. Its totient is φ = 10444735120.

The previous prime is 13056490219. The next prime is 13056490241. The reversal of 13056490225 is 52209465031.

The square root of 13056490225 is 114265.

It is a perfect power (a square), and thus also a powerful number.

13056490225 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 4 ways, for example, as 3035679409 + 10020810816 = 55097^2 + 100104^2 .

It is not a de Polignac number, because 13056490225 - 2³ = 13056490217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 559899 + ... + 582751.

Almost surely, 2^13056490225 is an apocalyptic number.

13056490225 is the 114265-th square number.

13056490225 is the 57133-rd centered octagonal number.

It is an amenable number.

13056490225 is a deficient number, since it is larger than the sum of its proper divisors (3134266128).

13056490225 is an frugal number, since it uses more digits than its factorization.

13056490225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45716 (or 22858 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 13056490225 in words is "thirteen billion, fifty-six million, four hundred ninety thousand, two hundred twenty-five".