425451563 has 2 divisors, whose sum is σ = 425451564. Its totient is φ = 425451562.

The previous prime is 425451517. The next prime is 425451569. The reversal of 425451563 is 365154524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425451563 - 2¹² = 425447467 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (425451569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212725781 + 212725782.

It is an arithmetic number, because the mean of its divisors is an integer number (212725782).

Almost surely, 2^425451563 is an apocalyptic number.

425451563 is a deficient number, since it is larger than the sum of its proper divisors (1).

425451563 is an equidigital number, since it uses as much as digits as its factorization.

425451563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72000, while the sum is 35.

The square root of 425451563 is about 20626.4772319463. The cubic root of 425451563 is about 752.1134833969.

The spelling of 425451563 in words is "four hundred twenty-five million, four hundred fifty-one thousand, five hundred sixty-three".