56551728606 has 16 divisors (see below), whose sum is σ = 113194905744. Its totient is φ = 18835334784.

The previous prime is 56551728593. The next prime is 56551728619. The reversal of 56551728606 is 60682715565.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (56551728593) and next prime (56551728619).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3802315 + ... + 3817158.

It is an arithmetic number, because the mean of its divisors is an integer number (7074681609).

Almost surely, 2^56551728606 is an apocalyptic number.

56551728606 is an abundant number, since it is smaller than the sum of its proper divisors (56643177138).

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

56551728606 is a wasteful number, since it uses less digits than its factorization.

56551728606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7620715.

The product of its (nonzero) digits is 3024000, while the sum is 51.

The spelling of 56551728606 in words is "fifty-six billion, five hundred fifty-one million, seven hundred twenty-eight thousand, six hundred six".