581560560 has 200 divisors, whose sum is σ = 2308575456. Its totient is φ = 132917760.

The previous prime is 581560547. The next prime is 581560597. The reversal of 581560560 is 65065185.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 38950 + ... + 51770.

Almost surely, 2^581560560 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 581560560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1154287728).

581560560 is an abundant number, since it is smaller than the sum of its proper divisors (1727014896).

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

581560560 is a wasteful number, since it uses less digits than its factorization.

581560560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12853 (or 12838 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 581560560 is about 24115.5667567652. The cubic root of 581560560 is about 834.7023739971.

The spelling of 581560560 in words is "five hundred eighty-one million, five hundred sixty thousand, five hundred sixty".