7256256 has 56 divisors (see below), whose sum is σ = 21945600. Its totient is φ = 2072832.

The previous prime is 7256251. The next prime is 7256257. The reversal of 7256256 is 6526527.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×7256256² = 105306502275072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7256251) 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, 1356 + ... + 4043.

Almost surely, 2^7256256 is an apocalyptic number.

It is an amenable number.

7256256 is an abundant number, since it is smaller than the sum of its proper divisors (14689344).

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

7256256 is a wasteful number, since it uses less digits than its factorization.

7256256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5421 (or 5411 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 7256256 is about 2693.7438631021. The cubic root of 7256256 is about 193.5994854618.

The spelling of 7256256 in words is "seven million, two hundred fifty-six thousand, two hundred fifty-six".