626378563 has 2 divisors, whose sum is σ = 626378564. Its totient is φ = 626378562.

The previous prime is 626378551. The next prime is 626378581. The reversal of 626378563 is 365873626.

626378563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 626378563 - 2⁵ = 626378531 is a prime.

It is not a weakly prime, because it can be changed into another prime (626378503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313189281 + 313189282.

It is an arithmetic number, because the mean of its divisors is an integer number (313189282).

Almost surely, 2^626378563 is an apocalyptic number.

626378563 is a deficient number, since it is larger than the sum of its proper divisors (1).

626378563 is an equidigital number, since it uses as much as digits as its factorization.

626378563 is an odious number, because the sum of its binary digits is odd.

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

The square root of 626378563 is about 25027.5560732565. The cubic root of 626378563 is about 855.6161276099.

The spelling of 626378563 in words is "six hundred twenty-six million, three hundred seventy-eight thousand, five hundred sixty-three".