540553 has 8 divisors (see below), whose sum is σ = 596288. Its totient is φ = 486864.

The previous prime is 540541. The next prime is 540557. The reversal of 540553 is 355045.

It is a happy number.

540553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 540553 - 2⁹ = 540041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76 + ... + 1042.

It is an arithmetic number, because the mean of its divisors is an integer number (74536).

2⁵⁴⁰⁵⁵³ is an apocalyptic number.

It is an amenable number.

540553 is a deficient number, since it is larger than the sum of its proper divisors (55735).

540553 is a wasteful number, since it uses less digits than its factorization.

540553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023.

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 540553 is about 735.2230953935. The cubic root of 540553 is about 81.4603166614.

Adding to 540553 its reverse (355045), we get a palindrome (895598).

It can be divided in two parts, 54055 and 3, that multiplied together give a triangular number (162165 = T₅₆₉).

The spelling of 540553 in words is "five hundred forty thousand, five hundred fifty-three".