542505244 has 24 divisors (see below), whose sum is σ = 972382320. Its totient is φ = 264735744.

The previous prime is 542505221. The next prime is 542505247. The reversal of 542505244 is 442505245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542505247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34287 + ... + 47545.

It is an arithmetic number, because the mean of its divisors is an integer number (40515930).

Almost surely, 2^542505244 is an apocalyptic number.

It is an amenable number.

542505244 is a deficient number, since it is larger than the sum of its proper divisors (429877076).

542505244 is a wasteful number, since it uses less digits than its factorization.

542505244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13509 (or 13507 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 31.

The square root of 542505244 is about 23291.7419700631. The cubic root of 542505244 is about 815.5826533487.

Subtracting from 542505244 its reverse (442505245), we obtain a palindrome (99999999).

The spelling of 542505244 in words is "five hundred forty-two million, five hundred five thousand, two hundred forty-four".