551222330 has 16 divisors (see below), whose sum is σ = 992538144. Its totient is φ = 220413840.

The previous prime is 551222303. The next prime is 551222363. The reversal of 551222330 is 33222155.

It is a junction number, because it is equal to n+sod(n) for n = 551222296 and 551222305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28865 + ... + 43995.

It is an arithmetic number, because the mean of its divisors is an integer number (62033634).

Almost surely, 2^551222330 is an apocalyptic number.

551222330 is a deficient number, since it is larger than the sum of its proper divisors (441315814).

551222330 is a wasteful number, since it uses less digits than its factorization.

551222330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18781.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 551222330 is about 23478.1244992014. The cubic root of 551222330 is about 819.9277796795.

Adding to 551222330 its reverse (33222155), we get a palindrome (584444485).

The spelling of 551222330 in words is "five hundred fifty-one million, two hundred twenty-two thousand, three hundred thirty".