551147 has 4 divisors (see below), whose sum is σ = 561600. Its totient is φ = 540696.

The previous prime is 551143. The next prime is 551179. The reversal of 551147 is 741155.

551147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 551147 - 2² = 551143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5147 + ... + 5252.

It is an arithmetic number, because the mean of its divisors is an integer number (140400).

2⁵⁵¹¹⁴⁷ is an apocalyptic number.

551147 is a deficient number, since it is larger than the sum of its proper divisors (10453).

551147 is a wasteful number, since it uses less digits than its factorization.

551147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10452.

The product of its digits is 700, while the sum is 23.

The square root of 551147 is about 742.3927531974. The cubic root of 551147 is about 81.9890427556.

The spelling of 551147 in words is "five hundred fifty-one thousand, one hundred forty-seven".