42253441 has 2 divisors, whose sum is σ = 42253442. Its totient is φ = 42253440.

The previous prime is 42253417. The next prime is 42253457. The reversal of 42253441 is 14435224.

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., 29322225 + 12931216 = 5415^2 + 3596^2 .

It is a cyclic number.

It is not a de Polignac number, because 42253441 - 2⁹ = 42252929 is a prime.

It is not a weakly prime, because it can be changed into another prime (42253481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21126720 + 21126721.

It is an arithmetic number, because the mean of its divisors is an integer number (21126721).

Almost surely, 2^42253441 is an apocalyptic number.

It is an amenable number.

42253441 is a deficient number, since it is larger than the sum of its proper divisors (1).

42253441 is an equidigital number, since it uses as much as digits as its factorization.

42253441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 25.

The square root of 42253441 is about 6500.2646869185. The cubic root of 42253441 is about 348.3004435165.

Adding to 42253441 its reverse (14435224), we get a palindrome (56688665).

The spelling of 42253441 in words is "forty-two million, two hundred fifty-three thousand, four hundred forty-one".