551975 has 6 divisors (see below), whose sum is σ = 684480. Its totient is φ = 441560.

The previous prime is 551963. The next prime is 551981. The reversal of 551975 is 579155.

It is not a de Polignac number, because 551975 - 2⁴ = 551959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11015 + ... + 11064.

It is an arithmetic number, because the mean of its divisors is an integer number (114080).

2⁵⁵¹⁹⁷⁵ is an apocalyptic number.

551975 is a deficient number, since it is larger than the sum of its proper divisors (132505).

551975 is a wasteful number, since it uses less digits than its factorization.

551975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22089 (or 22084 counting only the distinct ones).

The product of its digits is 7875, while the sum is 32.

The square root of 551975 is about 742.9502002153. The cubic root of 551975 is about 82.0300801798.

The spelling of 551975 in words is "five hundred fifty-one thousand, nine hundred seventy-five".