39968025 has 12 divisors (see below), whose sum is σ = 66080592. Its totient is φ = 21316240.

The previous prime is 39968009. The next prime is 39968041. The reversal of 39968025 is 52086993.

39968025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (39968009) and next prime (39968041).

It is not a de Polignac number, because 39968025 - 2⁴ = 39968009 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 11 ways as a sum of consecutive naturals, for example, 266379 + ... + 266528.

It is an arithmetic number, because the mean of its divisors is an integer number (5506716).

Almost surely, 2^39968025 is an apocalyptic number.

It is an amenable number.

39968025 is a deficient number, since it is larger than the sum of its proper divisors (26112567).

39968025 is a wasteful number, since it uses less digits than its factorization.

39968025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532920 (or 532915 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 39968025 is about 6322.0269692560. The cubic root of 39968025 is about 341.9040375747.

It can be divided in two parts, 3996 and 8025, that added together give a palindrome (12021).

The spelling of 39968025 in words is "thirty-nine million, nine hundred sixty-eight thousand, twenty-five".