42550641 has 12 divisors (see below), whose sum is σ = 70242432. Its totient is φ = 24314616.

The previous prime is 42550637. The next prime is 42550649. The reversal of 42550641 is 14605524.

It is not a de Polignac number, because 42550641 - 2² = 42550637 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42550649) 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 11 ways as a sum of consecutive naturals, for example, 337641 + ... + 337766.

It is an arithmetic number, because the mean of its divisors is an integer number (5853536).

Almost surely, 2^42550641 is an apocalyptic number.

It is an amenable number.

42550641 is a deficient number, since it is larger than the sum of its proper divisors (27691791).

42550641 is a wasteful number, since it uses less digits than its factorization.

42550641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675420 (or 675417 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 42550641 is about 6523.0852362973. The cubic root of 42550641 is about 349.1151553612.

The spelling of 42550641 in words is "forty-two million, five hundred fifty thousand, six hundred forty-one".