256582516 has 12 divisors (see below), whose sum is σ = 450608032. Its totient is φ = 127837368.

The previous prime is 256582493. The next prime is 256582519. The reversal of 256582516 is 615285652.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256582519) 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, 112200 + ... + 114463.

Almost surely, 2^256582516 is an apocalyptic number.

It is an amenable number.

256582516 is a deficient number, since it is larger than the sum of its proper divisors (194025516).

256582516 is a wasteful number, since it uses less digits than its factorization.

256582516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226950 (or 226948 counting only the distinct ones).

The product of its digits is 144000, while the sum is 40.

The square root of 256582516 is about 16018.1932813910. The cubic root of 256582516 is about 635.4416635145.

The spelling of 256582516 in words is "two hundred fifty-six million, five hundred eighty-two thousand, five hundred sixteen".