39561025 has 12 divisors (see below), whose sum is σ = 56063872. Its totient is φ = 27127440.

The previous prime is 39561013. The next prime is 39561031. The reversal of 39561025 is 52016593.

39561025 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 39561025 - 2¹¹ = 39558977 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 112857 + ... + 113206.

Almost surely, 2^39561025 is an apocalyptic number.

39561025 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

39561025 is a deficient number, since it is larger than the sum of its proper divisors (16502847).

39561025 is a wasteful number, since it uses less digits than its factorization.

39561025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226080 (or 226075 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 39561025 is about 6289.7555596382. The cubic root of 39561025 is about 340.7395235369.

The spelling of 39561025 in words is "thirty-nine million, five hundred sixty-one thousand, twenty-five".