542044523 has 4 divisors (see below), whose sum is σ = 542425800. Its totient is φ = 541663248.

The previous prime is 542044513. The next prime is 542044619. The reversal of 542044523 is 325440245.

542044523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 542044523 - 2⁸ = 542044267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542044513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188498 + ... + 191351.

It is an arithmetic number, because the mean of its divisors is an integer number (135606450).

Almost surely, 2^542044523 is an apocalyptic number.

542044523 is a deficient number, since it is larger than the sum of its proper divisors (381277).

542044523 is a wasteful number, since it uses less digits than its factorization.

542044523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381276.

The product of its (nonzero) digits is 19200, while the sum is 29.

The square root of 542044523 is about 23281.8496473111. The cubic root of 542044523 is about 815.3517108955.

Adding to 542044523 its reverse (325440245), we get a palindrome (867484768).

The spelling of 542044523 in words is "five hundred forty-two million, forty-four thousand, five hundred twenty-three".