5531444220 has 24 divisors (see below), whose sum is σ = 15488043984. Its totient is φ = 1475051776.

The previous prime is 5531444213. The next prime is 5531444249. The reversal of 5531444220 is 224441355.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46095309 + ... + 46095428.

It is an arithmetic number, because the mean of its divisors is an integer number (645335166).

Almost surely, 2^5531444220 is an apocalyptic number.

It is an amenable number.

5531444220 is an abundant number, since it is smaller than the sum of its proper divisors (9956599764).

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

5531444220 is a wasteful number, since it uses less digits than its factorization.

5531444220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92190749 (or 92190747 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 5531444220 is about 74373.6796185317. The cubic root of 5531444220 is about 1768.5316879060.

Adding to 5531444220 its reverse (224441355), we get a palindrome (5755885575).

The spelling of 5531444220 in words is "five billion, five hundred thirty-one million, four hundred forty-four thousand, two hundred twenty".