5521230 has 144 divisors (see below), whose sum is σ = 17524080. Its totient is φ = 1235520.

The previous prime is 5521213. The next prime is 5521249. The reversal of 5521230 is 321255.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 424704 + ... + 424716.

It is an arithmetic number, because the mean of its divisors is an integer number (121695).

Almost surely, 2^5521230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5521230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8762040).

5521230 is an abundant number, since it is smaller than the sum of its proper divisors (12002850).

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

5521230 is a wasteful number, since it uses less digits than its factorization.

5521230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 5521230 is about 2349.7297716972. The cubic root of 5521230 is about 176.7442442411.

Adding to 5521230 its reverse (321255), we get a palindrome (5842485).

The spelling of 5521230 in words is "five million, five hundred twenty-one thousand, two hundred thirty".