56028765 has 16 divisors (see below), whose sum is σ = 96542208. Its totient is φ = 27583296.

The previous prime is 56028757. The next prime is 56028769. The reversal of 56028765 is 56782065.

It is a happy number.

It is not a de Polignac number, because 56028765 - 2³ = 56028757 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56028769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143469 + ... + 143858.

It is an arithmetic number, because the mean of its divisors is an integer number (6033888).

Almost surely, 2^56028765 is an apocalyptic number.

It is an amenable number.

56028765 is a deficient number, since it is larger than the sum of its proper divisors (40513443).

56028765 is a wasteful number, since it uses less digits than its factorization.

56028765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287348.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 56028765 is about 7485.2364692106. The cubic root of 56028765 is about 382.6517318482.

The spelling of 56028765 in words is "fifty-six million, twenty-eight thousand, seven hundred sixty-five".