42556712 has 32 divisors (see below), whose sum is σ = 92171520. Its totient is φ = 18205440.

The previous prime is 42556699. The next prime is 42556733. The reversal of 42556712 is 21765524.

It is a super-2 number, since 2×42556712² = 3622147472501888, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12728 + ... + 15719.

It is an arithmetic number, because the mean of its divisors is an integer number (2880360).

Almost surely, 2^42556712 is an apocalyptic number.

It is an amenable number.

42556712 is an abundant number, since it is smaller than the sum of its proper divisors (49614808).

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

42556712 is a wasteful number, since it uses less digits than its factorization.

42556712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28481 (or 28477 counting only the distinct ones).

The product of its digits is 16800, while the sum is 32.

The square root of 42556712 is about 6523.5505669842. The cubic root of 42556712 is about 349.1317581453.

The spelling of 42556712 in words is "forty-two million, five hundred fifty-six thousand, seven hundred twelve".