42235601 has 2 divisors, whose sum is σ = 42235602. Its totient is φ = 42235600.

The previous prime is 42235591. The next prime is 42235649. The reversal of 42235601 is 10653224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41938576 + 297025 = 6476^2 + 545^2 .

It is a cyclic number.

It is not a de Polignac number, because 42235601 - 2¹⁸ = 41973457 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42235001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21117800 + 21117801.

It is an arithmetic number, because the mean of its divisors is an integer number (21117801).

Almost surely, 2^42235601 is an apocalyptic number.

It is an amenable number.

42235601 is a deficient number, since it is larger than the sum of its proper divisors (1).

42235601 is an equidigital number, since it uses as much as digits as its factorization.

42235601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 42235601 is about 6498.8922902292. The cubic root of 42235601 is about 348.2514174926.

Adding to 42235601 its reverse (10653224), we get a palindrome (52888825).

The spelling of 42235601 in words is "forty-two million, two hundred thirty-five thousand, six hundred one".