42567601 has 2 divisors, whose sum is σ = 42567602. Its totient is φ = 42567600.

The previous prime is 42567599. The next prime is 42567617. The reversal of 42567601 is 10676524.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23775376 + 18792225 = 4876^2 + 4335^2 .

It is a cyclic number.

It is not a de Polignac number, because 42567601 - 2¹ = 42567599 is a prime.

Together with 42567599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42567631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21283800 + 21283801.

It is an arithmetic number, because the mean of its divisors is an integer number (21283801).

Almost surely, 2^42567601 is an apocalyptic number.

It is an amenable number.

42567601 is a deficient number, since it is larger than the sum of its proper divisors (1).

42567601 is an equidigital number, since it uses as much as digits as its factorization.

42567601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 42567601 is about 6524.3851051268. The cubic root of 42567601 is about 349.1615330922.

The spelling of 42567601 in words is "forty-two million, five hundred sixty-seven thousand, six hundred one".