551493 has 12 divisors (see below), whose sum is σ = 824460. Its totient is φ = 354816.

The previous prime is 551489. The next prime is 551503. The reversal of 551493 is 394155.

It can be written as a sum of positive squares in 2 ways, for example, as 91809 + 459684 = 303^2 + 678^2 .

It is not a de Polignac number, because 551493 - 2² = 551489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 796 + ... + 1317.

It is an arithmetic number, because the mean of its divisors is an integer number (68705).

2⁵⁵¹⁴⁹³ is an apocalyptic number.

It is an amenable number.

551493 is a deficient number, since it is larger than the sum of its proper divisors (272967).

551493 is a wasteful number, since it uses less digits than its factorization.

551493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2148 (or 2145 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 551493 is about 742.6257469278. The cubic root of 551493 is about 82.0061962401.

The spelling of 551493 in words is "five hundred fifty-one thousand, four hundred ninety-three".