42555912 has 48 divisors (see below), whose sum is σ = 123762960. Its totient is φ = 12158496.

The previous prime is 42555907. The next prime is 42555941. The reversal of 42555912 is 21955524.

It is a super-2 number, since 2×42555912² = 3622011292303488, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16918 + ... + 19269.

It is an arithmetic number, because the mean of its divisors is an integer number (2578395).

Almost surely, 2^42555912 is an apocalyptic number.

42555912 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

42555912 is an abundant number, since it is smaller than the sum of its proper divisors (81207048).

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

42555912 is a wasteful number, since it uses less digits than its factorization.

42555912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36210 (or 36199 counting only the distinct ones).

The product of its digits is 18000, while the sum is 33.

The square root of 42555912 is about 6523.4892503935. The cubic root of 42555912 is about 349.1295704203.

The spelling of 42555912 in words is "forty-two million, five hundred fifty-five thousand, nine hundred twelve".