5545220 has 12 divisors (see below), whose sum is σ = 11645004. Its totient is φ = 2218080.

The previous prime is 5545219. The next prime is 5545223. The reversal of 5545220 is 225455.

It can be written as a sum of positive squares in 2 ways, for example, as 3161284 + 2383936 = 1778^2 + 1544^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5545223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138611 + ... + 138650.

It is an arithmetic number, because the mean of its divisors is an integer number (970417).

Almost surely, 2^5545220 is an apocalyptic number.

It is an amenable number.

5545220 is an abundant number, since it is smaller than the sum of its proper divisors (6099784).

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

5545220 is a wasteful number, since it uses less digits than its factorization.

5545220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277270 (or 277268 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 5545220 is about 2354.8290808464. The cubic root of 5545220 is about 176.9998616829. Note that the first 3 decimals are identical.

The spelling of 5545220 in words is "five million, five hundred forty-five thousand, two hundred twenty".