13009056 has 24 divisors (see below), whose sum is σ = 34149024. Its totient is φ = 4336320.

The previous prime is 13009027. The next prime is 13009067. The reversal of 13009056 is 65090031.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×13009056² = 338471076022272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67660 + ... + 67851.

It is an arithmetic number, because the mean of its divisors is an integer number (1422876).

Almost surely, 2^13009056 is an apocalyptic number.

13009056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13009056 is an abundant number, since it is smaller than the sum of its proper divisors (21139968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13009056 is a wasteful number, since it uses less digits than its factorization.

13009056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135524 (or 135516 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 13009056 is about 3606.8068980748. The cubic root of 13009056 is about 235.1880552960.

Adding to 13009056 its reverse (65090031), we get a palindrome (78099087).

The spelling of 13009056 in words is "thirteen million, nine thousand, fifty-six".