42216056 has 8 divisors (see below), whose sum is σ = 79155120. Its totient is φ = 21108024.

The previous prime is 42216029. The next prime is 42216061. The reversal of 42216056 is 65061224.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2638496 + ... + 2638511.

It is an arithmetic number, because the mean of its divisors is an integer number (9894390).

Almost surely, 2^42216056 is an apocalyptic number.

It is an amenable number.

42216056 is a deficient number, since it is larger than the sum of its proper divisors (36939064).

42216056 is a wasteful number, since it uses less digits than its factorization.

42216056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5277013 (or 5277009 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 42216056 is about 6497.3883984259. The cubic root of 42216056 is about 348.1976901157.

The spelling of 42216056 in words is "forty-two million, two hundred sixteen thousand, fifty-six".