540011 has 4 divisors (see below), whose sum is σ = 553224. Its totient is φ = 526800.

The previous prime is 539993. The next prime is 540041. The reversal of 540011 is 110045.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 540011 - 2⁶ = 539947 is a prime.

It is a super-2 number, since 2×540011² = 583223760242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 539974 and 540001.

It is not an unprimeable number, because it can be changed into a prime (540041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6545 + ... + 6626.

It is an arithmetic number, because the mean of its divisors is an integer number (138306).

2⁵⁴⁰⁰¹¹ is an apocalyptic number.

540011 is a deficient number, since it is larger than the sum of its proper divisors (13213).

540011 is a wasteful number, since it uses less digits than its factorization.

540011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13212.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 540011 is about 734.8544073488. The cubic root of 540011 is about 81.4330814310.

Adding to 540011 its reverse (110045), we get a palindrome (650056).

The spelling of 540011 in words is "five hundred forty thousand, eleven".