42567545305 has 4 divisors (see below), whose sum is σ = 51081054372. Its totient is φ = 34054036240.

The previous prime is 42567545303. The next prime is 42567545329. The reversal of 42567545305 is 50354576524.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16492723776 + 26074821529 = 128424^2 + 161477^2 .

It is not a de Polignac number, because 42567545305 - 2¹ = 42567545303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42567545303) 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 3 ways as a sum of consecutive naturals, for example, 4256754526 + ... + 4256754535.

It is an arithmetic number, because the mean of its divisors is an integer number (12770263593).

Almost surely, 2^42567545305 is an apocalyptic number.

It is an amenable number.

42567545305 is a deficient number, since it is larger than the sum of its proper divisors (8513509067).

42567545305 is an equidigital number, since it uses as much as digits as its factorization.

42567545305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8513509066.

The product of its (nonzero) digits is 2520000, while the sum is 46.

The spelling of 42567545305 in words is "forty-two billion, five hundred sixty-seven million, five hundred forty-five thousand, three hundred five".