42352001 has 2 divisors, whose sum is σ = 42352002. Its totient is φ = 42352000.

The previous prime is 42351989. The next prime is 42352003. The reversal of 42352001 is 10025324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32890225 + 9461776 = 5735^2 + 3076^2 .

It is a cyclic number.

It is not a de Polignac number, because 42352001 - 2²² = 38157697 is a prime.

It is a Sophie Germain prime.

Together with 42352003, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (42352003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21176000 + 21176001.

It is an arithmetic number, because the mean of its divisors is an integer number (21176001).

Almost surely, 2^42352001 is an apocalyptic number.

It is an amenable number.

42352001 is a deficient number, since it is larger than the sum of its proper divisors (1).

42352001 is an equidigital number, since it uses as much as digits as its factorization.

42352001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 42352001 is about 6507.8415008357. The cubic root of 42352001 is about 348.5710473931.

Adding to 42352001 its reverse (10025324), we get a palindrome (52377325).

The spelling of 42352001 in words is "forty-two million, three hundred fifty-two thousand, one".