256263045 has 8 divisors (see below), whose sum is σ = 410020896. Its totient is φ = 136673616.

The previous prime is 256263043. The next prime is 256263047. The reversal of 256263045 is 540362652.

It is an interprime number because it is at equal distance from previous prime (256263043) and next prime (256263047).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 256263045 - 2¹ = 256263043 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 256262997 and 256263015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256263043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8542087 + ... + 8542116.

It is an arithmetic number, because the mean of its divisors is an integer number (51252612).

Almost surely, 2^256263045 is an apocalyptic number.

It is an amenable number.

256263045 is a deficient number, since it is larger than the sum of its proper divisors (153757851).

256263045 is a wasteful number, since it uses less digits than its factorization.

256263045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17084211.

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 256263045 is about 16008.2180457414. The cubic root of 256263045 is about 635.1778244201.

The spelling of 256263045 in words is "two hundred fifty-six million, two hundred sixty-three thousand, forty-five".