256562 has 8 divisors (see below), whose sum is σ = 387696. Its totient is φ = 127332.

The previous prime is 256561. The next prime is 256567. The reversal of 256562 is 265652.

It is a happy number.

256562 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 256562.

It is not an unprimeable number, because it can be changed into a prime (256561) 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, 68 + ... + 719.

It is an arithmetic number, because the mean of its divisors is an integer number (48462).

2²⁵⁶⁵⁶² is an apocalyptic number.

256562 is a deficient number, since it is larger than the sum of its proper divisors (131134).

256562 is a wasteful number, since it uses less digits than its factorization.

256562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952.

The product of its digits is 3600, while the sum is 26.

The square root of 256562 is about 506.5194961697. The cubic root of 256562 is about 63.5424726704.

It can be divided in two parts, 256 and 562, that added together give a palindrome (818).

The spelling of 256562 in words is "two hundred fifty-six thousand, five hundred sixty-two".