56634678 has 12 divisors (see below), whose sum is σ = 122708508. Its totient is φ = 18878220.

The previous prime is 56634647. The next prime is 56634689. The reversal of 56634678 is 87643665.

56634678 is a `hidden beast` number, since 5 + 6 + 634 + 6 + 7 + 8 = 666.

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 5 ways as a sum of consecutive naturals, for example, 1573168 + ... + 1573203.

It is an arithmetic number, because the mean of its divisors is an integer number (10225709).

Almost surely, 2^56634678 is an apocalyptic number.

56634678 is an abundant number, since it is smaller than the sum of its proper divisors (66073830).

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

56634678 is a wasteful number, since it uses less digits than its factorization.

56634678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3146379 (or 3146376 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 56634678 is about 7525.6015041989. The cubic root of 56634678 is about 384.0261619545.

The spelling of 56634678 in words is "fifty-six million, six hundred thirty-four thousand, six hundred seventy-eight".