13225513 has 4 divisors (see below), whose sum is σ = 15114880. Its totient is φ = 11336148.

The previous prime is 13225453. The next prime is 13225517. The reversal of 13225513 is 31552231.

13225513 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31552231 = 37 ⋅852763.

It is a cyclic number.

It is not a de Polignac number, because 13225513 - 2¹⁷ = 13094441 is a prime.

It is a super-2 number, since 2×13225513² = 349828388226338, which contains 22 as substring.

It is a Duffinian number.

13225513 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (13225517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 944673 + ... + 944686.

It is an arithmetic number, because the mean of its divisors is an integer number (3778720).

Almost surely, 2^13225513 is an apocalyptic number.

It is an amenable number.

13225513 is a deficient number, since it is larger than the sum of its proper divisors (1889367).

13225513 is an equidigital number, since it uses as much as digits as its factorization.

13225513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889366.

The product of its digits is 900, while the sum is 22.

The square root of 13225513 is about 3636.6898410505. The cubic root of 13225513 is about 236.4853139109.

Adding to 13225513 its reverse (31552231), we get a palindrome (44777744).

The spelling of 13225513 in words is "thirteen million, two hundred twenty-five thousand, five hundred thirteen".