56174779 has 4 divisors (see below), whose sum is σ = 56254720. Its totient is φ = 56094840.

The previous prime is 56174761. The next prime is 56174831. The reversal of 56174779 is 97747165.

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

It is a cyclic number.

It is not a de Polignac number, because 56174779 - 2⁹ = 56174267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56174719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38907 + ... + 40324.

It is an arithmetic number, because the mean of its divisors is an integer number (14063680).

Almost surely, 2^56174779 is an apocalyptic number.

56174779 is a deficient number, since it is larger than the sum of its proper divisors (79941).

56174779 is an equidigital number, since it uses as much as digits as its factorization.

56174779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79940.

The product of its digits is 370440, while the sum is 46.

The square root of 56174779 is about 7494.9835890414. The cubic root of 56174779 is about 382.9838472328.

It can be divided in two parts, 56174 and 779, that added together give a triangular number (56953 = T₃₃₇).

The spelling of 56174779 in words is "fifty-six million, one hundred seventy-four thousand, seven hundred seventy-nine".