56777678 has 8 divisors (see below), whose sum is σ = 87913920. Its totient is φ = 27473040.

The previous prime is 56777663. The next prime is 56777683. The reversal of 56777678 is 87677765.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457823 + ... + 457946.

It is an arithmetic number, because the mean of its divisors is an integer number (10989240).

Almost surely, 2^56777678 is an apocalyptic number.

56777678 is a deficient number, since it is larger than the sum of its proper divisors (31136242).

56777678 is a wasteful number, since it uses less digits than its factorization.

56777678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915802.

The product of its digits is 3457440, while the sum is 53.

The square root of 56777678 is about 7535.0964161051. The cubic root of 56777678 is about 384.3491065290.

The spelling of 56777678 in words is "fifty-six million, seven hundred seventy-seven thousand, six hundred seventy-eight".