540518625 has 24 divisors (see below), whose sum is σ = 974376936. Its totient is φ = 288276000.

The previous prime is 540518609. The next prime is 540518633. The reversal of 540518625 is 526815045.

540518625 is a `hidden beast` number, since 540 + 51 + 8 + 62 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 374544 + 540144081 = 612^2 + 23241^2 .

It is not a de Polignac number, because 540518625 - 2⁴ = 540518609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 540518625.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 239106 + ... + 241355.

It is an arithmetic number, because the mean of its divisors is an integer number (40599039).

Almost surely, 2^540518625 is an apocalyptic number.

It is an amenable number.

540518625 is a deficient number, since it is larger than the sum of its proper divisors (433858311).

540518625 is a wasteful number, since it uses less digits than its factorization.

540518625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480482 (or 480469 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 540518625 is about 23249.0564324662. The cubic root of 540518625 is about 814.5858987556.

The spelling of 540518625 in words is "five hundred forty million, five hundred eighteen thousand, six hundred twenty-five".