39873525 has 24 divisors (see below), whose sum is σ = 67537344. Its totient is φ = 20745600.

The previous prime is 39873511. The next prime is 39873541. The reversal of 39873525 is 52537893.

It is not a de Polignac number, because 39873525 - 2¹⁷ = 39742453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3409 + ... + 9558.

It is an arithmetic number, because the mean of its divisors is an integer number (2814056).

Almost surely, 2^39873525 is an apocalyptic number.

It is an amenable number.

39873525 is a deficient number, since it is larger than the sum of its proper divisors (27663819).

39873525 is a wasteful number, since it uses less digits than its factorization.

39873525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13021 (or 13016 counting only the distinct ones).

The product of its digits is 226800, while the sum is 42.

The square root of 39873525 is about 6314.5486774591. The cubic root of 39873525 is about 341.6343600890.

The spelling of 39873525 in words is "thirty-nine million, eight hundred seventy-three thousand, five hundred twenty-five".