42253361 has 2 divisors, whose sum is σ = 42253362. Its totient is φ = 42253360.

The previous prime is 42253333. The next prime is 42253417. The reversal of 42253361 is 16335224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42003361 + 250000 = 6481^2 + 500^2 .

It is a cyclic number.

It is not a de Polignac number, because 42253361 - 2¹⁰ = 42252337 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42253361.

It is not a weakly prime, because it can be changed into another prime (42259361) 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, 21126680 + 21126681.

It is an arithmetic number, because the mean of its divisors is an integer number (21126681).

Almost surely, 2^42253361 is an apocalyptic number.

It is an amenable number.

42253361 is a deficient number, since it is larger than the sum of its proper divisors (1).

42253361 is an equidigital number, since it uses as much as digits as its factorization.

42253361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 26.

The square root of 42253361 is about 6500.2585333200. The cubic root of 42253361 is about 348.3002236996.

Adding to 42253361 its reverse (16335224), we get a palindrome (58588585).

The spelling of 42253361 in words is "forty-two million, two hundred fifty-three thousand, three hundred sixty-one".