5547820860 has 72 divisors (see below), whose sum is σ = 16875462240. Its totient is φ = 1475280768.

The previous prime is 5547820847. The next prime is 5547820867. The reversal of 5547820860 is 680287455.

5547820860 is a `hidden beast` number, since 5 + 547 + 8 + 20 + 86 + 0 = 666.

It is a super-2 number, since 2×5547820860² = 61556632589302279200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5547820867) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21694 + ... + 107546.

It is an arithmetic number, because the mean of its divisors is an integer number (234381420).

Almost surely, 2^5547820860 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 5547820860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8437731120).

5547820860 is an abundant number, since it is smaller than the sum of its proper divisors (11327641380).

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

5547820860 is a wasteful number, since it uses less digits than its factorization.

5547820860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86227 (or 86222 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The square root of 5547820860 is about 74483.6952627889. The cubic root of 5547820860 is about 1770.2752995132.

The spelling of 5547820860 in words is "five billion, five hundred forty-seven million, eight hundred twenty thousand, eight hundred sixty".