42606565 has 8 divisors (see below), whose sum is σ = 51214968. Its totient is φ = 34027200.

The previous prime is 42606563. The next prime is 42606583. The reversal of 42606565 is 56560624.

It can be written as a sum of positive squares in 4 ways, for example, as 693889 + 41912676 = 833^2 + 6474^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42606565 - 2¹ = 42606563 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42606565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42606563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3886 + ... + 10015.

It is an arithmetic number, because the mean of its divisors is an integer number (6401871).

Almost surely, 2^42606565 is an apocalyptic number.

It is an amenable number.

42606565 is a deficient number, since it is larger than the sum of its proper divisors (8608403).

42606565 is a wasteful number, since it uses less digits than its factorization.

42606565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14519.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 42606565 is about 6527.3704506486. The cubic root of 42606565 is about 349.2680349133.

The spelling of 42606565 in words is "forty-two million, six hundred six thousand, five hundred sixty-five".