56706655 has 4 divisors (see below), whose sum is σ = 68047992. Its totient is φ = 45365320.

The previous prime is 56706641. The next prime is 56706667. The reversal of 56706655 is 55660765.

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

It is not a de Polignac number, because 56706655 - 2⁷ = 56706527 is a prime.

It is a Duffinian 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, 5670661 + ... + 5670670.

It is an arithmetic number, because the mean of its divisors is an integer number (17011998).

Almost surely, 2^56706655 is an apocalyptic number.

56706655 is a deficient number, since it is larger than the sum of its proper divisors (11341337).

56706655 is a wasteful number, since it uses less digits than its factorization.

56706655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11341336.

The product of its (nonzero) digits is 189000, while the sum is 40.

The square root of 56706655 is about 7530.3821284182. The cubic root of 56706655 is about 384.1887793392.

The spelling of 56706655 in words is "fifty-six million, seven hundred six thousand, six hundred fifty-five".