553813 has 12 divisors (see below), whose sum is σ = 625860. Its totient is φ = 489216.

The previous prime is 553811. The next prime is 553837. The reversal of 553813 is 318355.

It is a happy number.

553813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 232324 + 321489 = 482^2 + 567^2 .

It is not a de Polignac number, because 553813 - 2¹ = 553811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553811) 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, 4845 + ... + 4957.

It is an arithmetic number, because the mean of its divisors is an integer number (52155).

2⁵⁵³⁸¹³ is an apocalyptic number.

It is an amenable number.

553813 is a deficient number, since it is larger than the sum of its proper divisors (72047).

553813 is a wasteful number, since it uses less digits than its factorization.

553813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 155 counting only the distinct ones).

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

The square root of 553813 is about 744.1861326308. The cubic root of 553813 is about 82.1210288926.

The spelling of 553813 in words is "five hundred fifty-three thousand, eight hundred thirteen".