256017452 has 24 divisors (see below), whose sum is σ = 470411760. Its totient is φ = 121746240.

The previous prime is 256017449. The next prime is 256017469. The reversal of 256017452 is 254710652.

It is an unprimeable number.

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, 8699 + ... + 24242.

It is an arithmetic number, because the mean of its divisors is an integer number (19600490).

Almost surely, 2^256017452 is an apocalyptic number.

It is an amenable number.

256017452 is a deficient number, since it is larger than the sum of its proper divisors (214394308).

256017452 is a wasteful number, since it uses less digits than its factorization.

256017452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33041 (or 33039 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 256017452 is about 16000.5453657055. The cubic root of 256017452 is about 634.9748492736.

Subtracting from 256017452 its product of nonzero digits (16800), we obtain a palindrome (256000652).

The spelling of 256017452 in words is "two hundred fifty-six million, seventeen thousand, four hundred fifty-two".