276494563 has 2 divisors, whose sum is σ = 276494564. Its totient is φ = 276494562.

The previous prime is 276494551. The next prime is 276494623. The reversal of 276494563 is 365494672.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 276494563 - 2⁵ = 276494531 is a prime.

It is not a weakly prime, because it can be changed into another prime (276494503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138247281 + 138247282.

It is an arithmetic number, because the mean of its divisors is an integer number (138247282).

Almost surely, 2^276494563 is an apocalyptic number.

276494563 is a deficient number, since it is larger than the sum of its proper divisors (1).

276494563 is an equidigital number, since it uses as much as digits as its factorization.

276494563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 46.

The square root of 276494563 is about 16628.1256610599. The cubic root of 276494563 is about 651.4716658791.

The spelling of 276494563 in words is "two hundred seventy-six million, four hundred ninety-four thousand, five hundred sixty-three".