42125273 has 4 divisors (see below), whose sum is σ = 42231780. Its totient is φ = 42018768.

The previous prime is 42125267. The next prime is 42125287. The reversal of 42125273 is 37252124.

42125273 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 36517849 + 5607424 = 6043^2 + 2368^2 .

It is a cyclic number.

It is not a de Polignac number, because 42125273 - 2¹⁶ = 42059737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42125173) 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, 52658 + ... + 53451.

It is an arithmetic number, because the mean of its divisors is an integer number (10557945).

Almost surely, 2^42125273 is an apocalyptic number.

It is an amenable number.

42125273 is a deficient number, since it is larger than the sum of its proper divisors (106507).

42125273 is a wasteful number, since it uses less digits than its factorization.

42125273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106506.

The product of its digits is 3360, while the sum is 26.

The square root of 42125273 is about 6490.3985239737. The cubic root of 42125273 is about 347.9479185062.

Adding to 42125273 its reverse (37252124), we get a palindrome (79377397).

The spelling of 42125273 in words is "forty-two million, one hundred twenty-five thousand, two hundred seventy-three".