42534566 has 16 divisors (see below), whose sum is σ = 64544256. Its totient is φ = 21021576.

The previous prime is 42534553. The next prime is 42534581. The reversal of 42534566 is 66543524.

It is a happy number.

It is a Curzon number.

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115715 + ... + 116081.

It is an arithmetic number, because the mean of its divisors is an integer number (4034016).

Almost surely, 2^42534566 is an apocalyptic number.

42534566 is a deficient number, since it is larger than the sum of its proper divisors (22009690).

42534566 is a wasteful number, since it uses less digits than its factorization.

42534566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883.

The product of its digits is 86400, while the sum is 35.

The square root of 42534566 is about 6521.8529575574. The cubic root of 42534566 is about 349.0711863175.

The spelling of 42534566 in words is "forty-two million, five hundred thirty-four thousand, five hundred sixty-six".