551125 has 8 divisors (see below), whose sum is σ = 687960. Its totient is φ = 440800.

The previous prime is 551113. The next prime is 551129. The reversal of 551125 is 521155.

It can be written as a sum of positive squares in 4 ways, for example, as 111556 + 439569 = 334^2 + 663^2 .

It is not a de Polignac number, because 551125 - 2⁵ = 551093 is a prime.

551125 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2080 + ... + 2329.

It is an arithmetic number, because the mean of its divisors is an integer number (85995).

2⁵⁵¹¹²⁵ is an apocalyptic number.

It is an amenable number.

551125 is a deficient number, since it is larger than the sum of its proper divisors (136835).

551125 is an equidigital number, since it uses as much as digits as its factorization.

551125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4424 (or 4414 counting only the distinct ones).

The product of its digits is 250, while the sum is 19.

The square root of 551125 is about 742.3779360945. The cubic root of 551125 is about 81.9879518289.

It can be divided in two parts, 551 and 125, that added together give a palindrome (676).

The spelling of 551125 in words is "five hundred fifty-one thousand, one hundred twenty-five".