256532574 has 16 divisors (see below), whose sum is σ = 513222912. Its totient is φ = 85484568.

The previous prime is 256532569. The next prime is 256532603. The reversal of 256532574 is 475235652.

It is a happy number.

256532574 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31797 + ... + 39039.

It is an arithmetic number, because the mean of its divisors is an integer number (32076432).

Almost surely, 2^256532574 is an apocalyptic number.

256532574 is an abundant number, since it is smaller than the sum of its proper divisors (256690338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256532574 is a wasteful number, since it uses less digits than its factorization.

256532574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13151.

The product of its digits is 252000, while the sum is 39.

The square root of 256532574 is about 16016.6342906367. The cubic root of 256532574 is about 635.4004327410.

The spelling of 256532574 in words is "two hundred fifty-six million, five hundred thirty-two thousand, five hundred seventy-four".