256546364 has 6 divisors (see below), whose sum is σ = 448956144. Its totient is φ = 128273180.

The previous prime is 256546361. The next prime is 256546369. The reversal of 256546364 is 463645652.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256546361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32068292 + ... + 32068299.

It is an arithmetic number, because the mean of its divisors is an integer number (74826024).

Almost surely, 2^256546364 is an apocalyptic number.

It is an amenable number.

256546364 is a deficient number, since it is larger than the sum of its proper divisors (192409780).

256546364 is a wasteful number, since it uses less digits than its factorization.

256546364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64136595 (or 64136593 counting only the distinct ones).

The product of its digits is 518400, while the sum is 41.

The square root of 256546364 is about 16017.0647747957. The cubic root of 256546364 is about 635.4118179293.

The spelling of 256546364 in words is "two hundred fifty-six million, five hundred forty-six thousand, three hundred sixty-four".