39291225 has 24 divisors (see below), whose sum is σ = 66721920. Its totient is φ = 20387520.

The previous prime is 39291211. The next prime is 39291271. The reversal of 39291225 is 52219293.

39291225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 39291225 - 2¹⁰ = 39290201 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4305 + ... + 9854.

It is an arithmetic number, because the mean of its divisors is an integer number (2780080).

Almost surely, 2^39291225 is an apocalyptic number.

It is an amenable number.

39291225 is a deficient number, since it is larger than the sum of its proper divisors (27430695).

39291225 is a wasteful number, since it uses less digits than its factorization.

39291225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14209 (or 14204 counting only the distinct ones).

The product of its digits is 9720, while the sum is 33.

The square root of 39291225 is about 6268.2712927888. The cubic root of 39291225 is about 339.9631592147.

The spelling of 39291225 in words is "thirty-nine million, two hundred ninety-one thousand, two hundred twenty-five".