42253613 has 2 divisors, whose sum is σ = 42253614. Its totient is φ = 42253612.

The previous prime is 42253597. The next prime is 42253633. The reversal of 42253613 is 31635224.

42253613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35081929 + 7171684 = 5923^2 + 2678^2 .

It is a cyclic number.

It is not a de Polignac number, because 42253613 - 2⁴ = 42253597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42253633) 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 as a sum of consecutive naturals, namely, 21126806 + 21126807.

It is an arithmetic number, because the mean of its divisors is an integer number (21126807).

Almost surely, 2^42253613 is an apocalyptic number.

It is an amenable number.

42253613 is a deficient number, since it is larger than the sum of its proper divisors (1).

42253613 is an equidigital number, since it uses as much as digits as its factorization.

42253613 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 42253613 is about 6500.2779171355. The cubic root of 42253613 is about 348.3009161217.

Adding to 42253613 its reverse (31635224), we get a palindrome (73888837).

The spelling of 42253613 in words is "forty-two million, two hundred fifty-three thousand, six hundred thirteen".