56009765 has 8 divisors (see below), whose sum is σ = 76813440. Its totient is φ = 38406672.

The previous prime is 56009741. The next prime is 56009771. The reversal of 56009765 is 56790065.

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 56009765 - 2¹⁰ = 56008741 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800105 + ... + 800174.

It is an arithmetic number, because the mean of its divisors is an integer number (9601680).

Almost surely, 2^56009765 is an apocalyptic number.

It is an amenable number.

56009765 is a deficient number, since it is larger than the sum of its proper divisors (20803675).

56009765 is a wasteful number, since it uses less digits than its factorization.

56009765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600291.

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 56009765 is about 7483.9671966144. The cubic root of 56009765 is about 382.6084730870.

The spelling of 56009765 in words is "fifty-six million, nine thousand, seven hundred sixty-five".