39516025 has 12 divisors (see below), whose sum is σ = 49139712. Its totient is φ = 31522640.

The previous prime is 39516023. The next prime is 39516073. The reversal of 39516025 is 52061593.

It is not a de Polignac number, because 39516025 - 2¹ = 39516023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39516023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7512 + ... + 11638.

It is an arithmetic number, because the mean of its divisors is an integer number (4094976).

Almost surely, 2^39516025 is an apocalyptic number.

It is an amenable number.

39516025 is a deficient number, since it is larger than the sum of its proper divisors (9623687).

39516025 is a wasteful number, since it uses less digits than its factorization.

39516025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4520 (or 4515 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 39516025 is about 6286.1772962588. The cubic root of 39516025 is about 340.6102793627.

The spelling of 39516025 in words is "thirty-nine million, five hundred sixteen thousand, twenty-five".