42252241 has 4 divisors (see below), whose sum is σ = 42265584. Its totient is φ = 42238900.

The previous prime is 42252227. The next prime is 42252269. The reversal of 42252241 is 14225224.

42252241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42252241 - 2²⁵ = 8697809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42252341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1086 + ... + 9256.

It is an arithmetic number, because the mean of its divisors is an integer number (10566396).

Almost surely, 2^42252241 is an apocalyptic number.

It is an amenable number.

42252241 is a deficient number, since it is larger than the sum of its proper divisors (13343).

42252241 is an equidigital number, since it uses as much as digits as its factorization.

42252241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13342.

The product of its digits is 1280, while the sum is 22.

The square root of 42252241 is about 6500.1723823296. The cubic root of 42252241 is about 348.2971462348.

Adding to 42252241 its reverse (14225224), we get a palindrome (56477465).

The spelling of 42252241 in words is "forty-two million, two hundred fifty-two thousand, two hundred forty-one".