5547220812 has 108 divisors (see below), whose sum is σ = 16335564336. Its totient is φ = 1582580160.

The previous prime is 5547220801. The next prime is 5547220813. The reversal of 5547220812 is 2180227455.

It is a happy number.

5547220812 is a `hidden beast` number, since 554 + 7 + 2 + 20 + 81 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (5547220813) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1449862 + ... + 1453682.

Almost surely, 2^5547220812 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 5547220812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8167782168).

5547220812 is an abundant number, since it is smaller than the sum of its proper divisors (10788343524).

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

5547220812 is a wasteful number, since it uses less digits than its factorization.

5547220812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4668 (or 4656 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 5547220812 is about 74479.6671045192. The cubic root of 5547220812 is about 1770.2114733444.

The spelling of 5547220812 in words is "five billion, five hundred forty-seven million, two hundred twenty thousand, eight hundred twelve".