551338 has 4 divisors (see below), whose sum is σ = 827010. Its totient is φ = 275668.

The previous prime is 551321. The next prime is 551339. The reversal of 551338 is 833155.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 833155 = 5 ⋅166631.

It can be written as a sum of positive squares in only one way, i.e., 514089 + 37249 = 717^2 + 193^2 .

It is not an unprimeable number, because it can be changed into a prime (551339) by changing a digit.

551338 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 as a sum of consecutive naturals, namely, 137833 + ... + 137836.

2⁵⁵¹³³⁸ is an apocalyptic number.

551338 is a deficient number, since it is larger than the sum of its proper divisors (275672).

551338 is a wasteful number, since it uses less digits than its factorization.

551338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275671.

The product of its digits is 1800, while the sum is 25.

The square root of 551338 is about 742.5213801636. The cubic root of 551338 is about 81.9985127630.

The spelling of 551338 in words is "five hundred fifty-one thousand, three hundred thirty-eight".