5281608540 has 96 divisors (see below), whose sum is σ = 16031909376. Its totient is φ = 1291449600.

The previous prime is 5281608481. The next prime is 5281608589. The reversal of 5281608540 is 458061825.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 95359 + ... + 140201.

It is an arithmetic number, because the mean of its divisors is an integer number (166999056).

Almost surely, 2^5281608540 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 5281608540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8015954688).

5281608540 is an abundant number, since it is smaller than the sum of its proper divisors (10750300836).

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

5281608540 is a wasteful number, since it uses less digits than its factorization.

5281608540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45019 (or 45017 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 5281608540 is about 72674.6760570696. The cubic root of 5281608540 is about 1741.4943497577.

The spelling of 5281608540 in words is "five billion, two hundred eighty-one million, six hundred eight thousand, five hundred forty".