256085224 has 8 divisors (see below), whose sum is σ = 480159810. Its totient is φ = 128042608.

The previous prime is 256085201. The next prime is 256085227. The reversal of 256085224 is 422580652.

256085224 is digitally balanced in base 2, because in such base 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., 169260100 + 86825124 = 13010^2 + 9318^2 .

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

It is a super-2 number, since 2×256085224² = 131159283902260352, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 256085224.

It is not an unprimeable number, because it can be changed into a prime (256085227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16005319 + ... + 16005334.

Almost surely, 2^256085224 is an apocalyptic number.

It is an amenable number.

256085224 is a deficient number, since it is larger than the sum of its proper divisors (224074586).

256085224 is a wasteful number, since it uses less digits than its factorization.

256085224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32010659 (or 32010655 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 256085224 is about 16002.6630283837. The cubic root of 256085224 is about 635.0308737340.

The spelling of 256085224 in words is "two hundred fifty-six million, eighty-five thousand, two hundred twenty-four".