3257925565 has 16 divisors (see below), whose sum is σ = 3933820800. Its totient is φ = 2590176960.

The previous prime is 3257925553. The next prime is 3257925571. The reversal of 3257925565 is 5655297523.

It is not a de Polignac number, because 3257925565 - 2¹⁵ = 3257892797 is a prime.

It is a super-2 number, since 2×3257925565² = 21228157974161138450, which contains 22 as substring.

It is a congruent number.

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, 713911 + ... + 718459.

It is an arithmetic number, because the mean of its divisors is an integer number (245863800).

Almost surely, 2^3257925565 is an apocalyptic number.

It is an amenable number.

3257925565 is a deficient number, since it is larger than the sum of its proper divisors (675895235).

3257925565 is a wasteful number, since it uses less digits than its factorization.

3257925565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5412.

The product of its digits is 2835000, while the sum is 49.

The square root of 3257925565 is about 57078.2407314731. The cubic root of 3257925565 is about 1482.4511313844.

The spelling of 3257925565 in words is "three billion, two hundred fifty-seven million, nine hundred twenty-five thousand, five hundred sixty-five".