42564463 has 2 divisors, whose sum is σ = 42564464. Its totient is φ = 42564462.

The previous prime is 42564451. The next prime is 42564479. The reversal of 42564463 is 36446524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42564463 - 2⁹ = 42563951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42564443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21282231 + 21282232.

It is an arithmetic number, because the mean of its divisors is an integer number (21282232).

Almost surely, 2^42564463 is an apocalyptic number.

42564463 is a deficient number, since it is larger than the sum of its proper divisors (1).

42564463 is an equidigital number, since it uses as much as digits as its factorization.

42564463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 34.

The square root of 42564463 is about 6524.1446182622. The cubic root of 42564463 is about 349.1529530470.

The spelling of 42564463 in words is "forty-two million, five hundred sixty-four thousand, four hundred sixty-three".