551682 has 12 divisors (see below), whose sum is σ = 1195350. Its totient is φ = 183888.

The previous prime is 551671. The next prime is 551689. The reversal of 551682 is 286155.

It can be written as a sum of positive squares in only one way, i.e., 549081 + 2601 = 741^2 + 51^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (551689) by changing a digit.

551682 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 5 ways as a sum of consecutive naturals, for example, 15307 + ... + 15342.

2⁵⁵¹⁶⁸² is an apocalyptic number.

551682 is an abundant number, since it is smaller than the sum of its proper divisors (643668).

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

551682 is a wasteful number, since it uses less digits than its factorization.

551682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30657 (or 30654 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 551682 is about 742.7529872037. The cubic root of 551682 is about 82.0155631773.

The spelling of 551682 in words is "five hundred fifty-one thousand, six hundred eighty-two".