42550064 has 10 divisors (see below), whose sum is σ = 82440780. Its totient is φ = 21275024.

The previous prime is 42550061. The next prime is 42550121. The reversal of 42550064 is 46005524.

It is not an unprimeable number, because it can be changed into a prime (42550061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1329674 + ... + 1329705.

It is an arithmetic number, because the mean of its divisors is an integer number (8244078).

Almost surely, 2^42550064 is an apocalyptic number.

It is an amenable number.

42550064 is a deficient number, since it is larger than the sum of its proper divisors (39890716).

42550064 is a wasteful number, since it uses less digits than its factorization.

42550064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2659387 (or 2659381 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 42550064 is about 6523.0410086094. The cubic root of 42550064 is about 349.1135773172.

Adding to 42550064 its reverse (46005524), we get a palindrome (88555588).

The spelling of 42550064 in words is "forty-two million, five hundred fifty thousand, sixty-four".