42550586 has 8 divisors (see below), whose sum is σ = 68735604. Its totient is φ = 19638720.

The previous prime is 42550577. The next prime is 42550589. The reversal of 42550586 is 68505524.

It can be written as a sum of positive squares in 2 ways, for example, as 38626225 + 3924361 = 6215^2 + 1981^2 .

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

It is not an unprimeable number, because it can be changed into a prime (42550589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 818255 + ... + 818306.

Almost surely, 2^42550586 is an apocalyptic number.

42550586 is a deficient number, since it is larger than the sum of its proper divisors (26185018).

42550586 is a wasteful number, since it uses less digits than its factorization.

42550586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636576.

The product of its (nonzero) digits is 48000, while the sum is 35.

The square root of 42550586 is about 6523.0810204994. The cubic root of 42550586 is about 349.1150049417.

The spelling of 42550586 in words is "forty-two million, five hundred fifty thousand, five hundred eighty-six".