42534601 has 2 divisors, whose sum is σ = 42534602. Its totient is φ = 42534600.

The previous prime is 42534599. The next prime is 42534637. The reversal of 42534601 is 10643524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39075001 + 3459600 = 6251^2 + 1860^2 .

It is a cyclic number.

It is not a de Polignac number, because 42534601 - 2¹ = 42534599 is a prime.

Together with 42534599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42534641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21267300 + 21267301.

It is an arithmetic number, because the mean of its divisors is an integer number (21267301).

Almost surely, 2^42534601 is an apocalyptic number.

It is an amenable number.

42534601 is a deficient number, since it is larger than the sum of its proper divisors (1).

42534601 is an equidigital number, since it uses as much as digits as its factorization.

42534601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 42534601 is about 6521.8556408433. The cubic root of 42534601 is about 349.0712820631.

The spelling of 42534601 in words is "forty-two million, five hundred thirty-four thousand, six hundred one".