42965563 has 4 divisors (see below), whose sum is σ = 43776288. Its totient is φ = 42154840.

The previous prime is 42965539. The next prime is 42965591. The reversal of 42965563 is 36556924.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42965563 - 2⁹ = 42965051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42965513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405283 + ... + 405388.

It is an arithmetic number, because the mean of its divisors is an integer number (10944072).

Almost surely, 2^42965563 is an apocalyptic number.

42965563 is a deficient number, since it is larger than the sum of its proper divisors (810725).

42965563 is an equidigital number, since it uses as much as digits as its factorization.

42965563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810724.

The product of its digits is 194400, while the sum is 40.

The square root of 42965563 is about 6554.8122017339. The cubic root of 42965563 is about 350.2462566275.

The spelling of 42965563 in words is "forty-two million, nine hundred sixty-five thousand, five hundred sixty-three".