56122779 has 8 divisors (see below), whose sum is σ = 75369280. Its totient is φ = 37145736.

The previous prime is 56122769. The next prime is 56122817. The reversal of 56122779 is 97722165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56122779 - 2²¹ = 54025627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56122709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66877 + ... + 67710.

It is an arithmetic number, because the mean of its divisors is an integer number (9421160).

Almost surely, 2^56122779 is an apocalyptic number.

56122779 is a deficient number, since it is larger than the sum of its proper divisors (19246501).

56122779 is a wasteful number, since it uses less digits than its factorization.

56122779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134729.

The product of its digits is 52920, while the sum is 39.

The square root of 56122779 is about 7491.5137989595. The cubic root of 56122779 is about 382.8656369576.

The spelling of 56122779 in words is "fifty-six million, one hundred twenty-two thousand, seven hundred seventy-nine".