551220332 has 24 divisors (see below), whose sum is σ = 1039602816. Its totient is φ = 254222208.

The previous prime is 551220301. The next prime is 551220337. The reversal of 551220332 is 233022155.

551220332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 551220298 and 551220307.

It is not an unprimeable number, because it can be changed into a prime (551220337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88133 + ... + 94179.

It is an arithmetic number, because the mean of its divisors is an integer number (43316784).

Almost surely, 2^551220332 is an apocalyptic number.

551220332 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

551220332 is a deficient number, since it is larger than the sum of its proper divisors (488382484).

551220332 is a wasteful number, since it uses less digits than its factorization.

551220332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7817 (or 7815 counting only the distinct ones).

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

The square root of 551220332 is about 23478.0819489157. The cubic root of 551220332 is about 819.9267890220.

Adding to 551220332 its reverse (233022155), we get a palindrome (784242487).

The spelling of 551220332 in words is "five hundred fifty-one million, two hundred twenty thousand, three hundred thirty-two".