56457678 has 16 divisors (see below), whose sum is σ = 113130576. Its totient is φ = 18783360.

The previous prime is 56457659. The next prime is 56457691. The reversal of 56457678 is 87675465.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5451 + ... + 11942.

It is an arithmetic number, because the mean of its divisors is an integer number (7070661).

Almost surely, 2^56457678 is an apocalyptic number.

56457678 is an abundant number, since it is smaller than the sum of its proper divisors (56672898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56457678 is a wasteful number, since it uses less digits than its factorization.

56457678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17939.

The product of its digits is 1411200, while the sum is 48.

The square root of 56457678 is about 7513.8324442324. The cubic root of 56457678 is about 383.6256796131.

The spelling of 56457678 in words is "fifty-six million, four hundred fifty-seven thousand, six hundred seventy-eight".