56135779 has 4 divisors (see below), whose sum is σ = 64155184. Its totient is φ = 48116376.

The previous prime is 56135777. The next prime is 56135789. The reversal of 56135779 is 97753165.

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

It is not a de Polignac number, because 56135779 - 2¹ = 56135777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56135773) 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, 4009692 + ... + 4009705.

It is an arithmetic number, because the mean of its divisors is an integer number (16038796).

Almost surely, 2^56135779 is an apocalyptic number.

56135779 is a deficient number, since it is larger than the sum of its proper divisors (8019405).

56135779 is an equidigital number, since it uses as much as digits as its factorization.

56135779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8019404.

The product of its digits is 198450, while the sum is 43.

The square root of 56135779 is about 7492.3813971260. The cubic root of 56135779 is about 382.8951963696.

The spelling of 56135779 in words is "fifty-six million, one hundred thirty-five thousand, seven hundred seventy-nine".