551155 has 12 divisors (see below), whose sum is σ = 727776. Its totient is φ = 400400.

The previous prime is 551143. The next prime is 551179.

551155 is nontrivially palindromic in base 10.

551155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 551155 - 2⁷ = 551027 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is a Duffinian number.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150 + ... + 1060.

It is an arithmetic number, because the mean of its divisors is an integer number (60648).

2⁵⁵¹¹⁵⁵ is an apocalyptic number.

551155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

551155 is a deficient number, since it is larger than the sum of its proper divisors (176621).

551155 is a wasteful number, since it uses less digits than its factorization.

551155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938 (or 927 counting only the distinct ones).

The product of its digits is 625, while the sum is 22.

The square root of 551155 is about 742.3981411615. The cubic root of 551155 is about 81.9894394490.

The spelling of 551155 in words is "five hundred fifty-one thousand, one hundred fifty-five".