1563472663 has 4 divisors (see below), whose sum is σ = 1563557040. Its totient is φ = 1563388288.

The previous prime is 1563472661. The next prime is 1563472697. The reversal of 1563472663 is 3662743651.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1563472663 - 2¹ = 1563472661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1563472661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 970 + ... + 55927.

It is an arithmetic number, because the mean of its divisors is an integer number (390889260).

Almost surely, 2^1563472663 is an apocalyptic number.

1563472663 is a deficient number, since it is larger than the sum of its proper divisors (84377).

1563472663 is an equidigital number, since it uses as much as digits as its factorization.

1563472663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84376.

The product of its digits is 544320, while the sum is 43.

The square root of 1563472663 is about 39540.7721598858. The cubic root of 1563472663 is about 1160.6379425491.

The spelling of 1563472663 in words is "one billion, five hundred sixty-three million, four hundred seventy-two thousand, six hundred sixty-three".