56019765 has 16 divisors (see below), whose sum is σ = 89968896. Its totient is φ = 29764800.

The previous prime is 56019737. The next prime is 56019767. The reversal of 56019765 is 56791065.

It is not a de Polignac number, because 56019765 - 2¹³ = 56011573 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56019767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2826 + ... + 10955.

It is an arithmetic number, because the mean of its divisors is an integer number (5623056).

Almost surely, 2^56019765 is an apocalyptic number.

It is an amenable number.

56019765 is a deficient number, since it is larger than the sum of its proper divisors (33949131).

56019765 is a wasteful number, since it uses less digits than its factorization.

56019765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14060.

The product of its (nonzero) digits is 56700, while the sum is 39.

The square root of 56019765 is about 7484.6352616544. The cubic root of 56019765 is about 382.6312420753.

The spelling of 56019765 in words is "fifty-six million, nineteen thousand, seven hundred sixty-five".