551131 has 8 divisors (see below), whose sum is σ = 644864. Its totient is φ = 461160.

The previous prime is 551129. The next prime is 551143. The reversal of 551131 is 131155.

551131 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 not a de Polignac number, because 551131 - 2¹ = 551129 is a prime.

It is a super-2 number, since 2×551131² = 607490758322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551231) 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, 615 + ... + 1216.

It is an arithmetic number, because the mean of its divisors is an integer number (80608).

2⁵⁵¹¹³¹ is an apocalyptic number.

551131 is a deficient number, since it is larger than the sum of its proper divisors (93733).

551131 is a wasteful number, since it uses less digits than its factorization.

551131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881.

The product of its digits is 75, while the sum is 16.

The square root of 551131 is about 742.3819771519. The cubic root of 551131 is about 81.9882493573.

Adding to 551131 its reverse (131155), we get a palindrome (682286).

The spelling of 551131 in words is "five hundred fifty-one thousand, one hundred thirty-one".