551012 has 24 divisors (see below), whose sum is σ = 1202880. Its totient is φ = 214560.

The previous prime is 551003. The next prime is 551017. The reversal of 551012 is 210155.

It is a super-2 number, since 2×551012² = 607228448288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551017) by changing a digit.

551012 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 587 + ... + 1202.

It is an arithmetic number, because the mean of its divisors is an integer number (50120).

2⁵⁵¹⁰¹² is an apocalyptic number.

It is an amenable number.

551012 is an abundant number, since it is smaller than the sum of its proper divisors (651868).

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

551012 is a wasteful number, since it uses less digits than its factorization.

551012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811 (or 1809 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 551012 is about 742.3018254053. The cubic root of 551012 is about 81.9823479751.

Adding to 551012 its reverse (210155), we get a palindrome (761167).

The spelling of 551012 in words is "five hundred fifty-one thousand, twelve".