42568545 has 16 divisors (see below), whose sum is σ = 69227712. Its totient is φ = 22330560.

The previous prime is 42568543. The next prime is 42568583. The reversal of 42568545 is 54586524.

42568545 = T₈₆ + T₈₇ + ... + T₆₃₄.

It is not a de Polignac number, because 42568545 - 2¹ = 42568543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42568543) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 22347 + ... + 24176.

It is an arithmetic number, because the mean of its divisors is an integer number (4326732).

Almost surely, 2^42568545 is an apocalyptic number.

It is an amenable number.

42568545 is a deficient number, since it is larger than the sum of its proper divisors (26659167).

42568545 is a wasteful number, since it uses less digits than its factorization.

42568545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46592.

The product of its digits is 192000, while the sum is 39.

The square root of 42568545 is about 6524.4574487079. The cubic root of 42568545 is about 349.1641141322.

The spelling of 42568545 in words is "forty-two million, five hundred sixty-eight thousand, five hundred forty-five".