56780678 has 4 divisors (see below), whose sum is σ = 85171020. Its totient is φ = 28390338.

The previous prime is 56780657. The next prime is 56780729. The reversal of 56780678 is 87608765.

56780678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14195168 + ... + 14195171.

It is an arithmetic number, because the mean of its divisors is an integer number (21292755).

Almost surely, 2^56780678 is an apocalyptic number.

56780678 is a deficient number, since it is larger than the sum of its proper divisors (28390342).

56780678 is a wasteful number, since it uses less digits than its factorization.

56780678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28390341.

The product of its (nonzero) digits is 564480, while the sum is 47.

The square root of 56780678 is about 7535.2954819304. The cubic root of 56780678 is about 384.3558757797.

The spelling of 56780678 in words is "fifty-six million, seven hundred eighty thousand, six hundred seventy-eight".