6561301925 has 12 divisors (see below), whose sum is σ = 8137086336. Its totient is φ = 5248350000.

The previous prime is 6561301909. The next prime is 6561301937. The reversal of 6561301925 is 5291031656.

6561301925 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6561301925 - 2⁴ = 6561301909 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 269612 + ... + 292938.

It is an arithmetic number, because the mean of its divisors is an integer number (678090528).

Almost surely, 2^6561301925 is an apocalyptic number.

It is an amenable number.

6561301925 is a deficient number, since it is larger than the sum of its proper divisors (1575784411).

6561301925 is a wasteful number, since it uses less digits than its factorization.

6561301925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34588 (or 34583 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 6561301925 is about 81001.8637131270. The cubic root of 6561301925 is about 1872.1041567812.

The spelling of 6561301925 in words is "six billion, five hundred sixty-one million, three hundred one thousand, nine hundred twenty-five".