42545683 has 2 divisors, whose sum is σ = 42545684. Its totient is φ = 42545682.

The previous prime is 42545663. The next prime is 42545729. The reversal of 42545683 is 38654524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42545683 - 2⁹ = 42545171 is a prime.

It is not a weakly prime, because it can be changed into another prime (42545663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21272841 + 21272842.

It is an arithmetic number, because the mean of its divisors is an integer number (21272842).

Almost surely, 2^42545683 is an apocalyptic number.

42545683 is a deficient number, since it is larger than the sum of its proper divisors (1).

42545683 is an equidigital number, since it uses as much as digits as its factorization.

42545683 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 42545683 is about 6522.7051903332. The cubic root of 42545683 is about 349.1015952038.

The spelling of 42545683 in words is "forty-two million, five hundred forty-five thousand, six hundred eighty-three".