13087056 has 40 divisors (see below), whose sum is σ = 34533504. Its totient is φ = 4268800.

The previous prime is 13087051. The next prime is 13087073. The reversal of 13087056 is 65078031.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13087051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 645 + ... + 5156.

Almost surely, 2^13087056 is an apocalyptic number.

13087056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13087056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17266752).

13087056 is an abundant number, since it is smaller than the sum of its proper divisors (21446448).

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

13087056 is a wasteful number, since it uses less digits than its factorization.

13087056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5859 (or 5853 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 13087056 is about 3617.6036267120. The cubic root of 13087056 is about 235.6571676374.

The spelling of 13087056 in words is "thirteen million, eighty-seven thousand, fifty-six".