42585249 has 8 divisors (see below), whose sum is σ = 64891840. Its totient is φ = 24334416.

The previous prime is 42585233. The next prime is 42585271. The reversal of 42585249 is 94258524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42585249 - 2⁴ = 42585233 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 (42585209) 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 7 ways as a sum of consecutive naturals, for example, 1013914 + ... + 1013955.

It is an arithmetic number, because the mean of its divisors is an integer number (8111480).

Almost surely, 2^42585249 is an apocalyptic number.

It is an amenable number.

42585249 is a deficient number, since it is larger than the sum of its proper divisors (22306591).

42585249 is a wasteful number, since it uses less digits than its factorization.

42585249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027879.

The product of its digits is 115200, while the sum is 39.

The square root of 42585249 is about 6525.7374295937. The cubic root of 42585249 is about 349.2097791073.

The spelling of 42585249 in words is "forty-two million, five hundred eighty-five thousand, two hundred forty-nine".