553220244 has 18 divisors (see below), whose sum is σ = 1398417930. Its totient is φ = 184406736.

The previous prime is 553220243. The next prime is 553220251. The reversal of 553220244 is 442022355.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 520387344 + 32832900 = 22812^2 + 5730^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553220243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7683579 + ... + 7683650.

It is an arithmetic number, because the mean of its divisors is an integer number (77689885).

Almost surely, 2^553220244 is an apocalyptic number.

It is an amenable number.

553220244 is an abundant number, since it is smaller than the sum of its proper divisors (845197686).

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

553220244 is a wasteful number, since it uses less digits than its factorization.

553220244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15367239 (or 15367234 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 553220244 is about 23520.6344302189. The cubic root of 553220244 is about 820.9171989608.

Adding to 553220244 its reverse (442022355), we get a palindrome (995242599).

The spelling of 553220244 in words is "five hundred fifty-three million, two hundred twenty thousand, two hundred forty-four".