56355565 has 16 divisors (see below), whose sum is σ = 77424768. Its totient is φ = 38575296.

The previous prime is 56355553. The next prime is 56355571. The reversal of 56355565 is 56555365.

It is a cyclic number.

It is not a de Polignac number, because 56355565 - 2⁷ = 56355437 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 15 ways as a sum of consecutive naturals, for example, 26014 + ... + 28096.

It is an arithmetic number, because the mean of its divisors is an integer number (4839048).

Almost surely, 2^56355565 is an apocalyptic number.

It is an amenable number.

56355565 is a deficient number, since it is larger than the sum of its proper divisors (21069203).

56355565 is a wasteful number, since it uses less digits than its factorization.

56355565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2868.

The product of its digits is 337500, while the sum is 40.

The square root of 56355565 is about 7507.0343678446. The cubic root of 56355565 is about 383.3942566475.

The spelling of 56355565 in words is "fifty-six million, three hundred fifty-five thousand, five hundred sixty-five".