42541056 has 84 divisors (see below), whose sum is σ = 123101862. Its totient is φ = 14155776.

The previous prime is 42541049. The next prime is 42541091. The reversal of 42541056 is 65014524.

It can be written as a sum of positive squares in only one way, i.e., 23040000 + 19501056 = 4800^2 + 4416^2 .

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 73440 + ... + 74016.

Almost surely, 2^42541056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42541056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61550931).

42541056 is an abundant number, since it is smaller than the sum of its proper divisors (80560806).

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

42541056 is an equidigital number, since it uses as much as digits as its factorization.

42541056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609 (or 582 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 42541056 is about 6522.3504965618. The cubic root of 42541056 is about 349.0889393828.

The spelling of 42541056 in words is "forty-two million, five hundred forty-one thousand, fifty-six".