1563454560 has 96 divisors (see below), whose sum is σ = 4930474752. Its totient is φ = 416448000.

The previous prime is 1563454559. The next prime is 1563454567. The reversal of 1563454560 is 654543651.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1563454560² = 4888780322369587200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1563454567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 693435 + ... + 695685.

It is an arithmetic number, because the mean of its divisors is an integer number (51359112).

Almost surely, 2^1563454560 is an apocalyptic number.

1563454560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1563454560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2465237376).

1563454560 is an abundant number, since it is smaller than the sum of its proper divisors (3367020192).

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

1563454560 is a wasteful number, since it uses less digits than its factorization.

1563454560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3716 (or 3708 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 39.

The square root of 1563454560 is about 39540.5432436126. The cubic root of 1563454560 is about 1160.6334629676.

The spelling of 1563454560 in words is "one billion, five hundred sixty-three million, four hundred fifty-four thousand, five hundred sixty".