42500201 has 2 divisors, whose sum is σ = 42500202. Its totient is φ = 42500200.

The previous prime is 42500197. The next prime is 42500203. The reversal of 42500201 is 10200524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40309801 + 2190400 = 6349^2 + 1480^2 .

It is a cyclic number.

It is not a de Polignac number, because 42500201 - 2² = 42500197 is a prime.

It is a Sophie Germain prime.

Together with 42500203, 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 (42500203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21250100 + 21250101.

It is an arithmetic number, because the mean of its divisors is an integer number (21250101).

Almost surely, 2^42500201 is an apocalyptic number.

It is an amenable number.

42500201 is a deficient number, since it is larger than the sum of its proper divisors (1).

42500201 is an equidigital number, since it uses as much as digits as its factorization.

42500201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 42500201 is about 6519.2178211807. The cubic root of 42500201 is about 348.9771524959.

Adding to 42500201 its reverse (10200524), we get a palindrome (52700725).

The spelling of 42500201 in words is "forty-two million, five hundred thousand, two hundred one".