540043925 has 6 divisors (see below), whose sum is σ = 669654498. Its totient is φ = 432035120.

The previous prime is 540043891. The next prime is 540043949. The reversal of 540043925 is 529340045.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 70324996 + 469718929 = 8386^2 + 21673^2 .

It is a de Polignac number, because none of the positive numbers 2^k-540043925 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 540043891 and 540043900.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10800854 + ... + 10800903.

It is an arithmetic number, because the mean of its divisors is an integer number (111609083).

Almost surely, 2^540043925 is an apocalyptic number.

It is an amenable number.

540043925 is a deficient number, since it is larger than the sum of its proper divisors (129610573).

540043925 is a wasteful number, since it uses less digits than its factorization.

540043925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21601767 (or 21601762 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 540043925 is about 23238.8451735451. The cubic root of 540043925 is about 814.3473641565.

The spelling of 540043925 in words is "five hundred forty million, forty-three thousand, nine hundred twenty-five".