551995 has 8 divisors (see below), whose sum is σ = 675216. Its totient is φ = 433056.

The previous prime is 551981. The next prime is 552001. The reversal of 551995 is 599155.

551995 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 551995 - 2⁵ = 551963 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 551995.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 777 + ... + 1306.

It is an arithmetic number, because the mean of its divisors is an integer number (84402).

2⁵⁵¹⁹⁹⁵ is an apocalyptic number.

551995 is a deficient number, since it is larger than the sum of its proper divisors (123221).

551995 is a wasteful number, since it uses less digits than its factorization.

551995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2141.

The product of its digits is 10125, while the sum is 34.

The square root of 551995 is about 742.9636599458. The cubic root of 551995 is about 82.0310709142.

The spelling of 551995 in words is "five hundred fifty-one thousand, nine hundred ninety-five".