13785256 has 16 divisors (see below), whose sum is σ = 25964640. Its totient is φ = 6861360.

The previous prime is 13785253. The next prime is 13785259. The reversal of 13785256 is 65258731.

It is an interprime number because it is at equal distance from previous prime (13785253) and next prime (13785259).

It is not an unprimeable number, because it can be changed into a prime (13785251) 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, 1980 + ... + 5611.

It is an arithmetic number, because the mean of its divisors is an integer number (1622790).

Almost surely, 2^13785256 is an apocalyptic number.

It is an amenable number.

13785256 is a deficient number, since it is larger than the sum of its proper divisors (12179384).

13785256 is a wasteful number, since it uses less digits than its factorization.

13785256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7824 (or 7820 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The square root of 13785256 is about 3712.8501181707. The cubic root of 13785256 is about 239.7755772459.

It can be divided in two parts, 13785 and 256, that added together give a palindrome (14041).

The spelling of 13785256 in words is "thirteen million, seven hundred eighty-five thousand, two hundred fifty-six".