256187852 has 12 divisors (see below), whose sum is σ = 460446000. Its totient is φ = 124631856.

The previous prime is 256187839. The next prime is 256187857. The reversal of 256187852 is 258781652.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (256187857) 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, 865352 + ... + 865647.

It is an arithmetic number, because the mean of its divisors is an integer number (38370500).

Almost surely, 2^256187852 is an apocalyptic number.

It is an amenable number.

256187852 is a deficient number, since it is larger than the sum of its proper divisors (204258148).

256187852 is a wasteful number, since it uses less digits than its factorization.

256187852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731040 (or 1731038 counting only the distinct ones).

The product of its digits is 268800, while the sum is 44.

The square root of 256187852 is about 16005.8692984792. The cubic root of 256187852 is about 635.1156934714.

The spelling of 256187852 in words is "two hundred fifty-six million, one hundred eighty-seven thousand, eight hundred fifty-two".