553224 has 64 divisors (see below), whose sum is σ = 1641600. Its totient is φ = 152064.

The previous prime is 553211. The next prime is 553229. The reversal of 553224 is 422355.

553224 = T₆₄ + T₆₅ + ... + T₁₅₂.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 553224.

It is not an unprimeable number, because it can be changed into a prime (553229) by changing a digit.

553224 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6172 + ... + 6260.

It is an arithmetic number, because the mean of its divisors is an integer number (25650).

2⁵⁵³²²⁴ 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 553224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (820800).

553224 is an abundant number, since it is smaller than the sum of its proper divisors (1088376).

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

553224 is a wasteful number, since it uses less digits than its factorization.

553224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 138 counting only the distinct ones).

The product of its digits is 1200, while the sum is 21.

The square root of 553224 is about 743.7902930262. The cubic root of 553224 is about 82.0919056785.

Adding to 553224 its reverse (422355), we get a palindrome (975579).

It can be divided in two parts, 553 and 224, that added together give a palindrome (777).

The spelling of 553224 in words is "five hundred fifty-three thousand, two hundred twenty-four".