42353273 has 4 divisors (see below), whose sum is σ = 44844660. Its totient is φ = 39861888.

The previous prime is 42353249. The next prime is 42353303. The reversal of 42353273 is 37235324.

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 36385024 + 5968249 = 6032^2 + 2443^2 .

It is a cyclic number.

It is not a de Polignac number, because 42353273 - 2¹⁸ = 42091129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42355273) 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 in 3 ways as a sum of consecutive naturals, for example, 1245668 + ... + 1245701.

It is an arithmetic number, because the mean of its divisors is an integer number (11211165).

Almost surely, 2^42353273 is an apocalyptic number.

It is an amenable number.

42353273 is a deficient number, since it is larger than the sum of its proper divisors (2491387).

42353273 is a wasteful number, since it uses less digits than its factorization.

42353273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2491386.

The product of its digits is 15120, while the sum is 29.

The square root of 42353273 is about 6507.9392283579. The cubic root of 42353273 is about 348.5745370191.

Adding to 42353273 its reverse (37235324), we get a palindrome (79588597).

The spelling of 42353273 in words is "forty-two million, three hundred fifty-three thousand, two hundred seventy-three".