256552 has 8 divisors (see below), whose sum is σ = 481050. Its totient is φ = 128272.

The previous prime is 256541. The next prime is 256561. The reversal of 256552 is 255652.

256552 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 181476 + 75076 = 426^2 + 274^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×256552³ = 50657933390605824, which contains 333 as substring.

It is an unprimeable number.

256552 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16027 + ... + 16042.

2²⁵⁶⁵⁵² is an apocalyptic number.

It is an amenable number.

256552 is a deficient number, since it is larger than the sum of its proper divisors (224498).

256552 is a wasteful number, since it uses less digits than its factorization.

256552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32075 (or 32071 counting only the distinct ones).

The product of its digits is 3000, while the sum is 25.

The square root of 256552 is about 506.5096247852. The cubic root of 256552 is about 63.5416470961.

Subtracting from 256552 its reverse (255652), we obtain a square (900 = 30²).

It can be divided in two parts, 256 and 552, that added together give a palindrome (808).

The spelling of 256552 in words is "two hundred fifty-six thousand, five hundred fifty-two".