5487449856 has 288 divisors, whose sum is σ = 17883855360. Its totient is φ = 1458044928.

The previous prime is 5487449833. The next prime is 5487449857. The reversal of 5487449856 is 6589447845.

It is a happy number.

It is a super-2 number, since 2×5487449856² = 60224211844228841472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5487449856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5487449857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8864715 + ... + 8865333.

It is an arithmetic number, because the mean of its divisors is an integer number (62096720).

Almost surely, 2^5487449856 is an apocalyptic number.

5487449856 is a gapful number since it is divisible by the number (56) 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 5487449856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8941927680).

5487449856 is an abundant number, since it is smaller than the sum of its proper divisors (12396405504).

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

5487449856 is a wasteful number, since it uses less digits than its factorization.

5487449856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759 (or 745 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 60.

The square root of 5487449856 is about 74077.3234937656. The cubic root of 5487449856 is about 1763.8305275766.

The spelling of 5487449856 in words is "five billion, four hundred eighty-seven million, four hundred forty-nine thousand, eight hundred fifty-six".