1563442056 has 192 divisors, whose sum is σ = 4912876800. Its totient is φ = 444182400.

The previous prime is 1563442051. The next prime is 1563442057. The reversal of 1563442056 is 6502443651.

1563442056 is a `hidden beast` number, since 1 + 563 + 4 + 42 + 0 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1563442056.

It is not an unprimeable number, because it can be changed into a prime (1563442051) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1609651 + ... + 1610621.

It is an arithmetic number, because the mean of its divisors is an integer number (25587900).

Almost surely, 2^1563442056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1563442056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2456438400).

1563442056 is an abundant number, since it is smaller than the sum of its proper divisors (3349434744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1563442056 is a wasteful number, since it uses less digits than its factorization.

1563442056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120 (or 1113 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 1563442056 is about 39540.3851271077. The cubic root of 1563442056 is about 1160.6303688366.

The spelling of 1563442056 in words is "one billion, five hundred sixty-three million, four hundred forty-two thousand, fifty-six".