551016 has 32 divisors (see below), whose sum is σ = 1531200. Its totient is φ = 183600.

The previous prime is 551003. The next prime is 551017. The reversal of 551016 is 610155.

551016 is nontrivially palindromic in base 16.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

551016 is an undulating number in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 551016.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 551016.

It is not an unprimeable number, because it can be changed into a prime (551017) 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 7 ways as a sum of consecutive naturals, for example, 1060 + ... + 1491.

It is an arithmetic number, because the mean of its divisors is an integer number (47850).

2⁵⁵¹⁰¹⁶ is an apocalyptic number.

It is an amenable number.

551016 is an abundant number, since it is smaller than the sum of its proper divisors (980184).

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

551016 is a wasteful number, since it uses less digits than its factorization.

551016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2566 (or 2556 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 551016 is about 742.3045197222. The cubic root of 551016 is about 81.9825463547.

The spelling of 551016 in words is "five hundred fifty-one thousand, sixteen".