54040287285 has 24 divisors (see below), whose sum is σ = 96201451320. Its totient is φ = 28042526592.

The previous prime is 54040287269. The next prime is 54040287311. The reversal of 54040287285 is 58278204045.

54040287285 is a `hidden beast` number, since 54 + 0 + 40 + 287 + 285 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 11561840676 + 42478446609 = 107526^2 + 206103^2 .

It is not a de Polignac number, because 54040287285 - 2⁴ = 54040287269 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 54040287285.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16226650 + ... + 16229979.

It is an arithmetic number, because the mean of its divisors is an integer number (4008393805).

Almost surely, 2^54040287285 is an apocalyptic number.

It is an amenable number.

54040287285 is a deficient number, since it is larger than the sum of its proper divisors (42161164035).

54040287285 is a wasteful number, since it uses less digits than its factorization.

54040287285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32456677 (or 32456674 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 45.

The spelling of 54040287285 in words is "fifty-four billion, forty million, two hundred eighty-seven thousand, two hundred eighty-five".