56778163 has 8 divisors (see below), whose sum is σ = 61514208. Its totient is φ = 52094784.

The previous prime is 56778157. The next prime is 56778167. The reversal of 56778163 is 36187765.

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

It is a cyclic number.

It is not a de Polignac number, because 56778163 - 2⁵ = 56778131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56778167) 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, 10906 + ... + 15247.

It is an arithmetic number, because the mean of its divisors is an integer number (7689276).

Almost surely, 2^56778163 is an apocalyptic number.

56778163 is a deficient number, since it is larger than the sum of its proper divisors (4736045).

56778163 is a wasteful number, since it uses less digits than its factorization.

56778163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26333.

The product of its digits is 211680, while the sum is 43.

The square root of 56778163 is about 7535.1285987699. The cubic root of 56778163 is about 384.3502009074.

The spelling of 56778163 in words is "fifty-six million, seven hundred seventy-eight thousand, one hundred sixty-three".