42656601 has 16 divisors (see below), whose sum is σ = 62093696. Its totient is φ = 25888896.

The previous prime is 42656599. The next prime is 42656609. The reversal of 42656601 is 10665624.

42656601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42656601 - 2¹ = 42656599 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42656609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4645 + ... + 10338.

It is an arithmetic number, because the mean of its divisors is an integer number (3880856).

Almost surely, 2^42656601 is an apocalyptic number.

It is an amenable number.

42656601 is a deficient number, since it is larger than the sum of its proper divisors (19437095).

42656601 is a wasteful number, since it uses less digits than its factorization.

42656601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15072.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 42656601 is about 6531.2021098723. The cubic root of 42656601 is about 349.4047050779.

The spelling of 42656601 in words is "forty-two million, six hundred fifty-six thousand, six hundred one".