1563508056 has 128 divisors (see below), whose sum is σ = 4382864640. Its totient is φ = 460761600.

The previous prime is 1563507997. The next prime is 1563508097. The reversal of 1563508056 is 6508053651.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1832526 + ... + 1833378.

It is an arithmetic number, because the mean of its divisors is an integer number (34241130).

Almost surely, 2^1563508056 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 1563508056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2191432320).

1563508056 is an abundant number, since it is smaller than the sum of its proper divisors (2819356584).

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

1563508056 is a wasteful number, since it uses less digits than its factorization.

1563508056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057 (or 1053 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 1563508056 is about 39541.2197080464. The cubic root of 1563508056 is about 1160.6467004357.

The spelling of 1563508056 in words is "one billion, five hundred sixty-three million, five hundred eight thousand, fifty-six".