6405825265 has 16 divisors (see below), whose sum is σ = 8786590848. Its totient is φ = 4391836416.

The previous prime is 6405825253. The next prime is 6405825317. The reversal of 6405825265 is 5625285046.

It is a cyclic number.

It is not a de Polignac number, because 6405825265 - 2⁷ = 6405825137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278494 + ... + 300616.

It is an arithmetic number, because the mean of its divisors is an integer number (549161928).

Almost surely, 2^6405825265 is an apocalyptic number.

It is an amenable number.

6405825265 is a deficient number, since it is larger than the sum of its proper divisors (2380765583).

6405825265 is a wasteful number, since it uses less digits than its factorization.

6405825265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30408.

The product of its (nonzero) digits is 576000, while the sum is 43.

The square root of 6405825265 is about 80036.3996254204. The cubic root of 6405825265 is about 1857.1986643965.

The spelling of 6405825265 in words is "six billion, four hundred five million, eight hundred twenty-five thousand, two hundred sixty-five".