540530028531 has 24 divisors (see below), whose sum is σ = 787257239184. Its totient is φ = 357369569280.

The previous prime is 540530028517. The next prime is 540530028611. The reversal of 540530028531 is 135820035045.

540530028531 is a `hidden beast` number, since 5 + 40 + 5 + 300 + 285 + 31 = 666.

It is not a de Polignac number, because 540530028531 - 2¹¹ = 540530026483 is a prime.

It is a super-2 number, since 2×540530028531² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (540530098531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10311 + ... + 1039791.

It is an arithmetic number, because the mean of its divisors is an integer number (32802384966).

Almost surely, 2^540530028531 is an apocalyptic number.

540530028531 is a deficient number, since it is larger than the sum of its proper divisors (246727210653).

540530028531 is a wasteful number, since it uses less digits than its factorization.

540530028531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029971 (or 1029968 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 540530028531 in words is "five hundred forty billion, five hundred thirty million, twenty-eight thousand, five hundred thirty-one".