540020511 has 12 divisors (see below), whose sum is σ = 781310088. Its totient is φ = 359422704.

The previous prime is 540020483. The next prime is 540020539. The reversal of 540020511 is 115020045.

It is an interprime number because it is at equal distance from previous prime (540020483) and next prime (540020539).

It is not a de Polignac number, because 540020511 - 2⁹ = 540019999 is a prime.

It is a super-3 number, since 3×540020511³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540020561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43425 + ... + 54458.

It is an arithmetic number, because the mean of its divisors is an integer number (65109174).

Almost surely, 2^540020511 is an apocalyptic number.

540020511 is a deficient number, since it is larger than the sum of its proper divisors (241289577).

540020511 is a wasteful number, since it uses less digits than its factorization.

540020511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98502 (or 98499 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 540020511 is about 23238.3413995061. The cubic root of 540020511 is about 814.3355951108.

Adding to 540020511 its reverse (115020045), we get a palindrome (655040556).

The spelling of 540020511 in words is "five hundred forty million, twenty thousand, five hundred eleven".