42112556 has 12 divisors (see below), whose sum is σ = 74427360. Its totient is φ = 20847600.

The previous prime is 42112537. The next prime is 42112559. The reversal of 42112556 is 65521124.

It is not an unprimeable number, because it can be changed into a prime (42112559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51716 + ... + 52523.

It is an arithmetic number, because the mean of its divisors is an integer number (6202280).

Almost surely, 2^42112556 is an apocalyptic number.

It is an amenable number.

42112556 is a deficient number, since it is larger than the sum of its proper divisors (32314804).

42112556 is a wasteful number, since it uses less digits than its factorization.

42112556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104344 (or 104342 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 42112556 is about 6489.4187721244. The cubic root of 42112556 is about 347.9129015302.

The spelling of 42112556 in words is "forty-two million, one hundred twelve thousand, five hundred fifty-six".