551982 has 8 divisors (see below), whose sum is σ = 1103976. Its totient is φ = 183992.

The previous prime is 551981. The next prime is 552001. The reversal of 551982 is 289155.

It is a sphenic number, since it is the product of 3 distinct primes.

551982 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45993 + ... + 46004.

It is an arithmetic number, because the mean of its divisors is an integer number (137997).

2⁵⁵¹⁹⁸² is an apocalyptic number.

551982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

551982 is a wasteful number, since it uses less digits than its factorization.

551982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92002.

The product of its digits is 3600, while the sum is 30.

The square root of 551982 is about 742.9549111487. The cubic root of 551982 is about 82.0304269396.

The spelling of 551982 in words is "five hundred fifty-one thousand, nine hundred eighty-two".