551371 has 4 divisors (see below), whose sum is σ = 556632. Its totient is φ = 546112.

The previous prime is 551363. The next prime is 551381. The reversal of 551371 is 173155.

551371 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, and also an emirpimes, since its reverse is a distinct semiprime: 173155 = 5 ⋅34631.

It is a cyclic number.

It is not a de Polignac number, because 551371 - 2³ = 551363 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551311) 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, 2470 + ... + 2683.

It is an arithmetic number, because the mean of its divisors is an integer number (139158).

2⁵⁵¹³⁷¹ is an apocalyptic number.

551371 is a deficient number, since it is larger than the sum of its proper divisors (5261).

551371 is a wasteful number, since it uses less digits than its factorization.

551371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5260.

The product of its digits is 525, while the sum is 22.

The square root of 551371 is about 742.5436014134. The cubic root of 551371 is about 82.0001487207. Note that the first 3 decimals are identical.

The spelling of 551371 in words is "five hundred fifty-one thousand, three hundred seventy-one".