13253566 has 12 divisors (see below), whose sum is σ = 20783952. Its totient is φ = 6338156.

The previous prime is 13253561. The next prime is 13253567. The reversal of 13253566 is 66535231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13253561) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5206 + ... + 7321.

It is an arithmetic number, because the mean of its divisors is an integer number (1731996).

Almost surely, 2^13253566 is an apocalyptic number.

13253566 is a deficient number, since it is larger than the sum of its proper divisors (7530386).

13253566 is a wasteful number, since it uses less digits than its factorization.

13253566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12575 (or 12552 counting only the distinct ones).

The product of its digits is 16200, while the sum is 31.

The square root of 13253566 is about 3640.5447394586. The cubic root of 13253566 is about 236.6524010004.

Adding to 13253566 its reverse (66535231), we get a palindrome (79788797).

The spelling of 13253566 in words is "thirteen million, two hundred fifty-three thousand, five hundred sixty-six".