256003064 has 32 divisors (see below), whose sum is σ = 505595520. Its totient is φ = 121282656.

The previous prime is 256003021. The next prime is 256003117. The reversal of 256003064 is 460300652.

It is a super-3 number, since 3×256003064³ (a number of 26 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

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, 13187 + ... + 26189.

It is an arithmetic number, because the mean of its divisors is an integer number (15799860).

Almost surely, 2^256003064 is an apocalyptic number.

It is an amenable number.

256003064 is a deficient number, since it is larger than the sum of its proper divisors (249592456).

256003064 is a wasteful number, since it uses less digits than its factorization.

256003064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13139 (or 13135 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 256003064 is about 16000.0957497135. The cubic root of 256003064 is about 634.9629540047.

The spelling of 256003064 in words is "two hundred fifty-six million, three thousand, sixty-four".