42550022 has 8 divisors (see below), whose sum is σ = 64080072. Its totient is φ = 21190000.

The previous prime is 42550019. The next prime is 42550051. The reversal of 42550022 is 22005524.

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

It is a junction number, because it is equal to n+sod(n) for n = 42549976 and 42550003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41879 + ... + 42882.

It is an arithmetic number, because the mean of its divisors is an integer number (8010009).

Almost surely, 2^42550022 is an apocalyptic number.

42550022 is a deficient number, since it is larger than the sum of its proper divisors (21530050).

42550022 is a wasteful number, since it uses less digits than its factorization.

42550022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85014.

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 42550022 is about 6523.0377892513. The cubic root of 42550022 is about 349.1134624504.

Adding to 42550022 its reverse (22005524), we get a palindrome (64555546).

The spelling of 42550022 in words is "forty-two million, five hundred fifty thousand, twenty-two".