551344 has 20 divisors (see below), whose sum is σ = 1131624. Its totient is φ = 259328.

The previous prime is 551339. The next prime is 551347. The reversal of 551344 is 443155.

It is not an unprimeable number, because it can be changed into a prime (551347) by changing a digit.

551344 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 742 + ... + 1285.

2⁵⁵¹³⁴⁴ is an apocalyptic number.

It is an amenable number.

551344 is an abundant number, since it is smaller than the sum of its proper divisors (580280).

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

551344 is a wasteful number, since it uses less digits than its factorization.

551344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052 (or 2046 counting only the distinct ones).

The product of its digits is 1200, while the sum is 22.

The square root of 551344 is about 742.5254204403. The cubic root of 551344 is about 81.9988102147.

Adding to 551344 its reverse (443155), we get a palindrome (994499).

It can be divided in two parts, 55 and 1344, that multiplied together give a triangular number (73920 = T₃₈₄).

The spelling of 551344 in words is "five hundred fifty-one thousand, three hundred forty-four".