481278563 has 2 divisors, whose sum is σ = 481278564. Its totient is φ = 481278562.

The previous prime is 481278559. The next prime is 481278583. The reversal of 481278563 is 365872184.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 481278563 - 2² = 481278559 is a prime.

It is not a weakly prime, because it can be changed into another prime (481278583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240639281 + 240639282.

It is an arithmetic number, because the mean of its divisors is an integer number (240639282).

Almost surely, 2^481278563 is an apocalyptic number.

481278563 is a deficient number, since it is larger than the sum of its proper divisors (1).

481278563 is an equidigital number, since it uses as much as digits as its factorization.

481278563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 44.

The square root of 481278563 is about 21938.0619700100. The cubic root of 481278563 is about 783.6681070153.

The spelling of 481278563 in words is "four hundred eighty-one million, two hundred seventy-eight thousand, five hundred sixty-three".