551201 has 8 divisors (see below), whose sum is σ = 643200. Its totient is φ = 472164.

The previous prime is 551197. The next prime is 551207. The reversal of 551201 is 102155.

It is not a de Polignac number, because 551201 - 2² = 551197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 461 + ... + 1146.

It is an arithmetic number, because the mean of its divisors is an integer number (80400).

2⁵⁵¹²⁰¹ is an apocalyptic number.

It is an amenable number.

551201 is a deficient number, since it is larger than the sum of its proper divisors (91999).

551201 is an equidigital number, since it uses as much as digits as its factorization.

551201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628 (or 1614 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 551201 is about 742.4291211961. The cubic root of 551201 is about 81.9917203617.

Adding to 551201 its reverse (102155), we get a palindrome (653356).

The spelling of 551201 in words is "five hundred fifty-one thousand, two hundred one".