39039025 has 12 divisors (see below), whose sum is σ = 48890844. Its totient is φ = 30920000.

The previous prime is 39039023. The next prime is 39039029. The reversal of 39039025 is 52093093.

39039025 = 859² + 860² + ... + 908².

It can be written as a sum of positive squares in 6 ways, for example, as 1521 + 39037504 = 39^2 + 6248^2 .

It is not a de Polignac number, because 39039025 - 2¹ = 39039023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39039023) 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 11 ways as a sum of consecutive naturals, for example, 5206 + ... + 10255.

It is an arithmetic number, because the mean of its divisors is an integer number (4074237).

Almost surely, 2^39039025 is an apocalyptic number.

It is an amenable number.

39039025 is a deficient number, since it is larger than the sum of its proper divisors (9851819).

39039025 is a wasteful number, since it uses less digits than its factorization.

39039025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15572 (or 15567 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 31.

The square root of 39039025 is about 6248.1217177645. The cubic root of 39039025 is about 339.2342194371.

The spelling of 39039025 in words is "thirty-nine million, thirty-nine thousand, twenty-five".