551230224 has 60 divisors (see below), whose sum is σ = 1442239536. Its totient is φ = 181420736.

The previous prime is 551230187. The next prime is 551230237. The reversal of 551230224 is 422032155.

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 = 551230194 and 551230203.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 329839 + ... + 331505.

Almost surely, 2^551230224 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 551230224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (721119768).

551230224 is an abundant number, since it is smaller than the sum of its proper divisors (891009312).

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

551230224 is a wasteful number, since it uses less digits than its factorization.

551230224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844 (or 1755 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 551230224 is about 23478.2926125389. The cubic root of 551230224 is about 819.9316936955.

Adding to 551230224 its reverse (422032155), we get a palindrome (973262379).

The spelling of 551230224 in words is "five hundred fifty-one million, two hundred thirty thousand, two hundred twenty-four".