540425 has 6 divisors (see below), whose sum is σ = 670158. Its totient is φ = 432320.

The previous prime is 540391. The next prime is 540433. The reversal of 540425 is 524045.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3136 + 537289 = 56^2 + 733^2 .

It is not a de Polignac number, because 540425 - 2¹⁰ = 539401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 540397 and 540406.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 540425.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10784 + ... + 10833.

It is an arithmetic number, because the mean of its divisors is an integer number (111693).

2⁵⁴⁰⁴²⁵ is an apocalyptic number.

It is an amenable number.

540425 is a deficient number, since it is larger than the sum of its proper divisors (129733).

540425 is a wasteful number, since it uses less digits than its factorization.

540425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21627 (or 21622 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 540425 is about 735.1360418317. The cubic root of 540425 is about 81.4538863677.

The spelling of 540425 in words is "five hundred forty thousand, four hundred twenty-five".