42537325 has 6 divisors (see below), whose sum is σ = 52746314. Its totient is φ = 34029840.

The previous prime is 42537317. The next prime is 42537329. The reversal of 42537325 is 52373524.

It can be written as a sum of positive squares in 3 ways, for example, as 841 + 42536484 = 29^2 + 6522^2 .

It is not a de Polignac number, because 42537325 - 2³ = 42537317 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 (42537329) 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 5 ways as a sum of consecutive naturals, for example, 850722 + ... + 850771.

Almost surely, 2^42537325 is an apocalyptic number.

It is an amenable number.

42537325 is a deficient number, since it is larger than the sum of its proper divisors (10208989).

42537325 is a wasteful number, since it uses less digits than its factorization.

42537325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701503 (or 1701498 counting only the distinct ones).

The product of its digits is 25200, while the sum is 31.

The square root of 42537325 is about 6522.0644737690. The cubic root of 42537325 is about 349.0787336425.

The spelling of 42537325 in words is "forty-two million, five hundred thirty-seven thousand, three hundred twenty-five".