542005245 has 24 divisors (see below), whose sum is σ = 940133376. Its totient is φ = 288867168.

The previous prime is 542005241. The next prime is 542005301. The reversal of 542005245 is 542500245.

It is not a de Polignac number, because 542005245 - 2² = 542005241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542005241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78732 + ... + 85338.

It is an arithmetic number, because the mean of its divisors is an integer number (39172224).

Almost surely, 2^542005245 is an apocalyptic number.

It is an amenable number.

542005245 is a deficient number, since it is larger than the sum of its proper divisors (398128131).

542005245 is a wasteful number, since it uses less digits than its factorization.

542005245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8441 (or 8438 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 542005245 is about 23281.0060993936. The cubic root of 542005245 is about 815.3320162291.

The spelling of 542005245 in words is "five hundred forty-two million, five thousand, two hundred forty-five".