39081225 has 24 divisors (see below), whose sum is σ = 65045440. Its totient is φ = 20704320.

The previous prime is 39081197. The next prime is 39081239. The reversal of 39081225 is 52218093.

It is a happy number.

It is not a de Polignac number, because 39081225 - 2¹⁰ = 39080201 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 39081192 and 39081201.

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, 10116 + ... + 13434.

Almost surely, 2^39081225 is an apocalyptic number.

It is an amenable number.

39081225 is a deficient number, since it is larger than the sum of its proper divisors (25964215).

39081225 is a wasteful number, since it uses less digits than its factorization.

39081225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3489 (or 3484 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 39081225 is about 6251.4978205227. The cubic root of 39081225 is about 339.3564093815.

The spelling of 39081225 in words is "thirty-nine million, eighty-one thousand, two hundred twenty-five".