551112 has 16 divisors (see below), whose sum is σ = 1377840. Its totient is φ = 183696.

The previous prime is 551107. The next prime is 551113. The reversal of 551112 is 211155.

It is a junction number, because it is equal to n+sod(n) for n = 551091 and 551100.

It is not an unprimeable number, because it can be changed into a prime (551113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11458 + ... + 11505.

It is an arithmetic number, because the mean of its divisors is an integer number (86115).

2⁵⁵¹¹¹² is an apocalyptic number.

It is an amenable number.

551112 is an abundant number, since it is smaller than the sum of its proper divisors (826728).

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

551112 is a wasteful number, since it uses less digits than its factorization.

551112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22972 (or 22968 counting only the distinct ones).

The product of its digits is 50, while the sum is 15.

The square root of 551112 is about 742.3691803948. The cubic root of 551112 is about 81.9873071768.

Adding to 551112 its reverse (211155), we get a palindrome (762267).

The spelling of 551112 in words is "five hundred fifty-one thousand, one hundred twelve".