551154 has 16 divisors (see below), whose sum is σ = 1114848. Its totient is φ = 181632.

The previous prime is 551143. The next prime is 551179. The reversal of 551154 is 451155.

It is a self number, because there is not a number n which added to its sum of digits gives 551154.

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, 109 + ... + 1055.

It is an arithmetic number, because the mean of its divisors is an integer number (69678).

2⁵⁵¹¹⁵⁴ is an apocalyptic number.

551154 is an abundant number, since it is smaller than the sum of its proper divisors (563694).

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

551154 is a wasteful number, since it uses less digits than its factorization.

551154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049.

The product of its digits is 500, while the sum is 21.

The square root of 551154 is about 742.3974676681. The cubic root of 551154 is about 81.9893898626.

Subtracting from 551154 its reverse (451155), we obtain a palindrome (99999).

It can be divided in two parts, 5511 and 54, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 551154 in words is "five hundred fifty-one thousand, one hundred fifty-four".