56719779 has 8 divisors (see below), whose sum is σ = 77670480. Its totient is φ = 36791136.

The previous prime is 56719763. The next prime is 56719811. The reversal of 56719779 is 97791765.

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

It is not a de Polignac number, because 56719779 - 2⁴ = 56719763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56719079) 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, 255384 + ... + 255605.

It is an arithmetic number, because the mean of its divisors is an integer number (9708810).

Almost surely, 2^56719779 is an apocalyptic number.

56719779 is a deficient number, since it is larger than the sum of its proper divisors (20950701).

56719779 is a wasteful number, since it uses less digits than its factorization.

56719779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511029.

The product of its digits is 833490, while the sum is 51.

The square root of 56719779 is about 7531.2534813270. The cubic root of 56719779 is about 384.2184155116.

The spelling of 56719779 in words is "fifty-six million, seven hundred nineteen thousand, seven hundred seventy-nine".