3565225681 has 8 divisors (see below), whose sum is σ = 3618432000. Its totient is φ = 3512221440.

The previous prime is 3565225667. The next prime is 3565225709. The reversal of 3565225681 is 1865225653.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3565225681 - 2⁷ = 3565225553 is a prime.

It is a super-2 number, since 2×3565225681² = 25421668312923827522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3565225621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14785 + ... + 85726.

It is an arithmetic number, because the mean of its divisors is an integer number (452304000).

Almost surely, 2^3565225681 is an apocalyptic number.

It is an amenable number.

3565225681 is a deficient number, since it is larger than the sum of its proper divisors (53206319).

3565225681 is a wasteful number, since it uses less digits than its factorization.

3565225681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101039.

The product of its digits is 432000, while the sum is 43.

The square root of 3565225681 is about 59709.5108085806. The cubic root of 3565225681 is about 1527.6680955013.

The spelling of 3565225681 in words is "three billion, five hundred sixty-five million, two hundred twenty-five thousand, six hundred eighty-one".