551874 has 32 divisors (see below), whose sum is σ = 1198080. Its totient is φ = 168912.

The previous prime is 551861. The next prime is 551909. The reversal of 551874 is 478155.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 551874.

It is an unprimeable number.

551874 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5307 + ... + 5409.

It is an arithmetic number, because the mean of its divisors is an integer number (37440).

2⁵⁵¹⁸⁷⁴ is an apocalyptic number.

551874 is an abundant number, since it is smaller than the sum of its proper divisors (646206).

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

551874 is a wasteful number, since it uses less digits than its factorization.

551874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174.

The product of its digits is 5600, while the sum is 30.

The square root of 551874 is about 742.8822248513. The cubic root of 551874 is about 82.0250766057.

The spelling of 551874 in words is "five hundred fifty-one thousand, eight hundred seventy-four".