13225810 has 16 divisors (see below), whose sum is σ = 25637976. Its totient is φ = 4883328.

The previous prime is 13225787. The next prime is 13225819. The reversal of 13225810 is 1852231.

It can be written as a sum of positive squares in 4 ways, for example, as 5602689 + 7623121 = 2367^2 + 2761^2 .

It is a super-2 number, since 2×13225810² = 349844100312200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13225819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50739 + ... + 50998.

Almost surely, 2^13225810 is an apocalyptic number.

13225810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13225810 is a deficient number, since it is larger than the sum of its proper divisors (12412166).

13225810 is a wasteful number, since it uses less digits than its factorization.

13225810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101757.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 13225810 is about 3636.7306746582. The cubic root of 13225810 is about 236.4870841160.

The spelling of 13225810 in words is "thirteen million, two hundred twenty-five thousand, eight hundred ten".