42253241 has 2 divisors, whose sum is σ = 42253242. Its totient is φ = 42253240.

The previous prime is 42253213. The next prime is 42253259. The reversal of 42253241 is 14235224.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42198016 + 55225 = 6496^2 + 235^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42253241 is a prime.

It is not a weakly prime, because it can be changed into another prime (42253291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21126620 + 21126621.

It is an arithmetic number, because the mean of its divisors is an integer number (21126621).

Almost surely, 2^42253241 is an apocalyptic number.

It is an amenable number.

42253241 is a deficient number, since it is larger than the sum of its proper divisors (1).

42253241 is an equidigital number, since it uses as much as digits as its factorization.

42253241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 23.

The square root of 42253241 is about 6500.2493029114. The cubic root of 42253241 is about 348.2998939739.

Adding to 42253241 its reverse (14235224), we get a palindrome (56488465).

The spelling of 42253241 in words is "forty-two million, two hundred fifty-three thousand, two hundred forty-one".