540553443 has 4 divisors (see below), whose sum is σ = 720737928. Its totient is φ = 360368960.

The previous prime is 540553441. The next prime is 540553463. The reversal of 540553443 is 344355045.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 540553443 - 2¹ = 540553441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (540553441) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 90092238 + ... + 90092243.

It is an arithmetic number, because the mean of its divisors is an integer number (180184482).

Almost surely, 2^540553443 is an apocalyptic number.

540553443 is a deficient number, since it is larger than the sum of its proper divisors (180184485).

540553443 is a wasteful number, since it uses less digits than its factorization.

540553443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180184484.

The product of its (nonzero) digits is 72000, while the sum is 33.

The square root of 540553443 is about 23249.8052249906. The cubic root of 540553443 is about 814.6033891445.

The spelling of 540553443 in words is "five hundred forty million, five hundred fifty-three thousand, four hundred forty-three".