4256280647 has 2 divisors, whose sum is σ = 4256280648. Its totient is φ = 4256280646.

The previous prime is 4256280629. The next prime is 4256280689. The reversal of 4256280647 is 7460826524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4256280647 - 2¹⁶ = 4256215111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4256280598 and 4256280607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4256280547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2128140323 + 2128140324.

It is an arithmetic number, because the mean of its divisors is an integer number (2128140324).

Almost surely, 2^4256280647 is an apocalyptic number.

4256280647 is a deficient number, since it is larger than the sum of its proper divisors (1).

4256280647 is an equidigital number, since it uses as much as digits as its factorization.

4256280647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 44.

The square root of 4256280647 is about 65240.1766321950. The cubic root of 4256280647 is about 1620.6034239134.

The spelling of 4256280647 in words is "four billion, two hundred fifty-six million, two hundred eighty thousand, six hundred forty-seven".