1563673055 has 24 divisors (see below), whose sum is σ = 2277670752. Its totient is φ = 1025610432.

The previous prime is 1563673043. The next prime is 1563673063. The reversal of 1563673055 is 5503763651.

It is not a de Polignac number, because 1563673055 - 2²⁴ = 1546895839 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133112 + ... + 144381.

It is an arithmetic number, because the mean of its divisors is an integer number (94902948).

Almost surely, 2^1563673055 is an apocalyptic number.

1563673055 is a deficient number, since it is larger than the sum of its proper divisors (713997697).

1563673055 is a wasteful number, since it uses less digits than its factorization.

1563673055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277535 (or 277528 counting only the distinct ones).

The product of its (nonzero) digits is 283500, while the sum is 41.

The square root of 1563673055 is about 39543.3060706866. The cubic root of 1563673055 is about 1160.6875271753.

The spelling of 1563673055 in words is "one billion, five hundred sixty-three million, six hundred seventy-three thousand, fifty-five".