5281320560 has 80 divisors (see below), whose sum is σ = 13118505600. Its totient is φ = 1971433728.

The previous prime is 5281320553. The next prime is 5281320599. The reversal of 5281320560 is 650231825.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75911 + ... + 127769.

It is an arithmetic number, because the mean of its divisors is an integer number (163981320).

Almost surely, 2^5281320560 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 5281320560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6559252800).

5281320560 is an abundant number, since it is smaller than the sum of its proper divisors (7837185040).

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

5281320560 is a wasteful number, since it uses less digits than its factorization.

5281320560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51958 (or 51952 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 5281320560 is about 72672.6947346801. The cubic root of 5281320560 is about 1741.4626974902.

The spelling of 5281320560 in words is "five billion, two hundred eighty-one million, three hundred twenty thousand, five hundred sixty".