42305453 has 4 divisors (see below), whose sum is σ = 42368988. Its totient is φ = 42241920.

The previous prime is 42305449. The next prime is 42305477. The reversal of 42305453 is 35450324.

42305453 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.

It can be written as a sum of positive squares in 2 ways, for example, as 30492484 + 11812969 = 5522^2 + 3437^2 .

It is a cyclic number.

It is not a de Polignac number, because 42305453 - 2² = 42305449 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42305423) 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, 30758 + ... + 32103.

It is an arithmetic number, because the mean of its divisors is an integer number (10592247).

Almost surely, 2^42305453 is an apocalyptic number.

It is an amenable number.

42305453 is a deficient number, since it is larger than the sum of its proper divisors (63535).

42305453 is an equidigital number, since it uses as much as digits as its factorization.

42305453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63534.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 42305453 is about 6504.2642166505. The cubic root of 42305453 is about 348.4432987419.

Adding to 42305453 its reverse (35450324), we get a palindrome (77755777).

The spelling of 42305453 in words is "forty-two million, three hundred five thousand, four hundred fifty-three".