42500112 has 40 divisors (see below), whose sum is σ = 115572960. Its totient is φ = 13420800.

The previous prime is 42500111. The next prime is 42500123. The reversal of 42500112 is 21100524.

It is a junction number, because it is equal to n+sod(n) for n = 42500091 and 42500100.

It is not an unprimeable number, because it can be changed into a prime (42500111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22389 + ... + 24212.

It is an arithmetic number, because the mean of its divisors is an integer number (2889324).

Almost surely, 2^42500112 is an apocalyptic number.

It is an amenable number.

42500112 is an abundant number, since it is smaller than the sum of its proper divisors (73072848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42500112 is a wasteful number, since it uses less digits than its factorization.

42500112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46631 (or 46625 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 42500112 is about 6519.2109952049. The cubic root of 42500112 is about 348.9769088972.

Adding to 42500112 its reverse (21100524), we get a palindrome (63600636).

The spelling of 42500112 in words is "forty-two million, five hundred thousand, one hundred twelve".