39885825 has 96 divisors (see below), whose sum is σ = 82494720. Its totient is φ = 16588800.

The previous prime is 39885821. The next prime is 39885827. The reversal of 39885825 is 52858893.

It is not a de Polignac number, because 39885825 - 2² = 39885821 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39885821) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 365871 + ... + 365979.

It is an arithmetic number, because the mean of its divisors is an integer number (859320).

Almost surely, 2^39885825 is an apocalyptic number.

39885825 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

39885825 is an abundant number, since it is smaller than the sum of its proper divisors (42608895).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39885825 is a wasteful number, since it uses less digits than its factorization.

39885825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 182 counting only the distinct ones).

The product of its digits is 691200, while the sum is 48.

The square root of 39885825 is about 6315.5225437014. The cubic root of 39885825 is about 341.6694850716.

The spelling of 39885825 in words is "thirty-nine million, eight hundred eighty-five thousand, eight hundred twenty-five".