39656039225 has 12 divisors (see below), whose sum is σ = 53643806160. Its totient is φ = 28840755600.

The previous prime is 39656039219. The next prime is 39656039231. The reversal of 39656039225 is 52293065693.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (39656039219) and next prime (39656039231).

It is not a de Polignac number, because 39656039225 - 2¹⁶ = 39655973689 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72101615 + ... + 72102164.

It is an arithmetic number, because the mean of its divisors is an integer number (4470317180).

Almost surely, 2^39656039225 is an apocalyptic number.

It is an amenable number.

39656039225 is a deficient number, since it is larger than the sum of its proper divisors (13987766935).

39656039225 is a wasteful number, since it uses less digits than its factorization.

39656039225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144203800 (or 144203795 counting only the distinct ones).

The product of its (nonzero) digits is 2624400, while the sum is 50.

The spelling of 39656039225 in words is "thirty-nine billion, six hundred fifty-six million, thirty-nine thousand, two hundred twenty-five".