56107789 has 4 divisors (see below), whose sum is σ = 56149020. Its totient is φ = 56066560.

The previous prime is 56107783. The next prime is 56107811. The reversal of 56107789 is 98770165.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14402025 + 41705764 = 3795^2 + 6458^2 .

It is a cyclic number.

It is not a de Polignac number, because 56107789 - 2²¹ = 54010637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56107783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18502 + ... + 21319.

It is an arithmetic number, because the mean of its divisors is an integer number (14037255).

Almost surely, 2^56107789 is an apocalyptic number.

It is an amenable number.

56107789 is a deficient number, since it is larger than the sum of its proper divisors (41231).

56107789 is a wasteful number, since it uses less digits than its factorization.

56107789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41230.

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 56107789 is about 7490.5132667929. The cubic root of 56107789 is about 382.8315470151.

The spelling of 56107789 in words is "fifty-six million, one hundred seven thousand, seven hundred eighty-nine".