39025009 has 3 divisors (see below), whose sum is σ = 39031257. Its totient is φ = 39018762.

The previous prime is 39024983. The next prime is 39025027. The reversal of 39025009 is 90052093.

The square root of 39025009 is 6247.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 90052093 = 239 ⋅376787.

It is not a de Polignac number, because 39025009 - 2⁵ = 39024977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39025709) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3124 + ... + 9370.

It is an arithmetic number, because the mean of its divisors is an integer number (13010419).

Almost surely, 2^39025009 is an apocalyptic number.

39025009 is the 6247-th square number.

39025009 is the 3124-th centered octagonal number.

It is an amenable number.

39025009 is a deficient number, since it is larger than the sum of its proper divisors (6248).

39025009 is an frugal number, since it uses more digits than its factorization.

39025009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12494 (or 6247 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 28.

The cubic root of 39025009 is about 339.1936166817.

It can be divided in two parts, 3902 and 5009, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 39025009 in words is "thirty-nine million, twenty-five thousand, nine".