42545500205 has 8 divisors (see below), whose sum is σ = 54981877272. Its totient is φ = 31418215488.

The previous prime is 42545500201. The next prime is 42545500229. The reversal of 42545500205 is 50200554524.

It can be written as a sum of positive squares in 4 ways, for example, as 1230466084 + 41315034121 = 35078^2 + 203261^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42545500205 - 2² = 42545500201 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42545500201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327273014 + ... + 327273143.

It is an arithmetic number, because the mean of its divisors is an integer number (6872734659).

Almost surely, 2^42545500205 is an apocalyptic number.

It is an amenable number.

42545500205 is a deficient number, since it is larger than the sum of its proper divisors (12436377067).

42545500205 is a wasteful number, since it uses less digits than its factorization.

42545500205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654546175.

The product of its (nonzero) digits is 40000, while the sum is 32.

The spelling of 42545500205 in words is "forty-two billion, five hundred forty-five million, five hundred thousand, two hundred five".