553623 has 16 divisors (see below), whose sum is σ = 865536. Its totient is φ = 308160.

The previous prime is 553607. The next prime is 553627. The reversal of 553623 is 326355.

553623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 553623 - 2⁴ = 553607 is a prime.

It is a super-2 number, since 2×553623² = 612996852258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 553593 and 553602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 540 + ... + 1182.

It is an arithmetic number, because the mean of its divisors is an integer number (54096).

2⁵⁵³⁶²³ is an apocalyptic number.

553623 is a deficient number, since it is larger than the sum of its proper divisors (311913).

553623 is a wasteful number, since it uses less digits than its factorization.

553623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694.

The product of its digits is 2700, while the sum is 24.

The square root of 553623 is about 744.0584654448. The cubic root of 553623 is about 82.1116365645. Note that the first 3 decimals are identical.

Adding to 553623 its reverse (326355), we get a palindrome (879978).

It can be divided in two parts, 553 and 623, that added together give a triangular number (1176 = T₄₈).

The spelling of 553623 in words is "five hundred fifty-three thousand, six hundred twenty-three".