256062645 has 24 divisors (see below), whose sum is σ = 445432416. Its totient is φ = 136077408.

The previous prime is 256062617. The next prime is 256062683. The reversal of 256062645 is 546260652.

256062645 is a `hidden beast` number, since 2 + 5 + 6 + 0 + 6 + 2 + 645 = 666.

It is not a de Polignac number, because 256062645 - 2¹⁰ = 256061621 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2682 + ... + 22788.

It is an arithmetic number, because the mean of its divisors is an integer number (18559684).

Almost surely, 2^256062645 is an apocalyptic number.

It is an amenable number.

256062645 is a deficient number, since it is larger than the sum of its proper divisors (189369771).

256062645 is a wasteful number, since it uses less digits than its factorization.

256062645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20401 (or 20398 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 256062645 is about 16001.9575365016. The cubic root of 256062645 is about 635.0122096563.

The spelling of 256062645 in words is "two hundred fifty-six million, sixty-two thousand, six hundred forty-five".