540806055903 has 24 divisors (see below), whose sum is σ = 799375344768. Its totient is φ = 352133206992.

The previous prime is 540806055857. The next prime is 540806055947. The reversal of 540806055903 is 309550608045.

540806055903 is a `hidden beast` number, since 54 + 0 + 8 + 0 + 6 + 0 + 5 + 590 + 3 = 666.

It is not a de Polignac number, because 540806055903 - 2¹⁷ = 540805924831 is a prime.

It is a super-2 number, since 2×540806055903² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540806055103) 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, 10930126 + ... + 10979492.

It is an arithmetic number, because the mean of its divisors is an integer number (33307306032).

Almost surely, 2^540806055903 is an apocalyptic number.

540806055903 is a deficient number, since it is larger than the sum of its proper divisors (258569288865).

540806055903 is a wasteful number, since it uses less digits than its factorization.

540806055903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77723 (or 77720 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 540806055903 in words is "five hundred forty billion, eight hundred six million, fifty-five thousand, nine hundred three".