5515224 has 64 divisors (see below), whose sum is σ = 16208640. Its totient is φ = 1541760.

The previous prime is 5515219. The next prime is 5515243. The reversal of 5515224 is 4225155.

5515224 = 121² + 122² + ... + 263².

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 5515194 and 5515203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2629 + ... + 4235.

It is an arithmetic number, because the mean of its divisors is an integer number (253260).

Almost surely, 2^5515224 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 5515224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8104320).

5515224 is an abundant number, since it is smaller than the sum of its proper divisors (10693416).

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

5515224 is a wasteful number, since it uses less digits than its factorization.

5515224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640 (or 1636 counting only the distinct ones).

The product of its digits is 2000, while the sum is 24.

The square root of 5515224 is about 2348.4514046495. The cubic root of 5515224 is about 176.6801334618.

It can be divided in two parts, 551 and 5224, that added together give a palindrome (5775).

The spelling of 5515224 in words is "five million, five hundred fifteen thousand, two hundred twenty-four".