540520 has 16 divisors (see below), whose sum is σ = 1216260. Its totient is φ = 216192.

The previous prime is 540517. The next prime is 540539. The reversal of 540520 is 25045.

It is a happy number.

540520 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 2 ways, for example, as 538756 + 1764 = 734^2 + 42^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 540494 and 540503.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6717 + ... + 6796.

2⁵⁴⁰⁵²⁰ is an apocalyptic number.

It is an amenable number.

540520 is an abundant number, since it is smaller than the sum of its proper divisors (675740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

540520 is a wasteful number, since it uses less digits than its factorization.

540520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13524 (or 13520 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 540520 is about 735.2006528833. The cubic root of 540520 is about 81.4586589484.

Adding to 540520 its reverse (25045), we get a palindrome (565565).

The spelling of 540520 in words is "five hundred forty thousand, five hundred twenty".