42485563 has 2 divisors, whose sum is σ = 42485564. Its totient is φ = 42485562.

The previous prime is 42485561. The next prime is 42485579. The reversal of 42485563 is 36558424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42485563 - 2¹ = 42485561 is a prime.

Together with 42485561, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42485561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21242781 + 21242782.

It is an arithmetic number, because the mean of its divisors is an integer number (21242782).

Almost surely, 2^42485563 is an apocalyptic number.

42485563 is a deficient number, since it is larger than the sum of its proper divisors (1).

42485563 is an equidigital number, since it uses as much as digits as its factorization.

42485563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 115200, while the sum is 37.

The square root of 42485563 is about 6518.0950437992. The cubic root of 42485563 is about 348.9370827706.

It can be divided in two parts, 42 and 485563, that added together give a triangular number (485605 = T₉₈₅).

The spelling of 42485563 in words is "forty-two million, four hundred eighty-five thousand, five hundred sixty-three".