553563 has 6 divisors (see below), whose sum is σ = 799604. Its totient is φ = 369036.

The previous prime is 553561. The next prime is 553573. The reversal of 553563 is 365355.

It is a happy number.

553563 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 553563 - 2¹ = 553561 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (553561) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30745 + ... + 30762.

2⁵⁵³⁵⁶³ is an apocalyptic number.

553563 is a deficient number, since it is larger than the sum of its proper divisors (246041).

553563 is a wasteful number, since it uses less digits than its factorization.

553563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61513 (or 61510 counting only the distinct ones).

The product of its digits is 6750, while the sum is 27.

The square root of 553563 is about 744.0181449400. The cubic root of 553563 is about 82.1086701197.

Subtracting from 553563 its sum of digits (27), we obtain a square (553536 = 744²).

The spelling of 553563 in words is "five hundred fifty-three thousand, five hundred sixty-three".