56628650173 has 8 divisors (see below), whose sum is σ = 59967655992. Its totient is φ = 53290523136.

The previous prime is 56628650171. The next prime is 56628650189. The reversal of 56628650173 is 37105682665.

It can be written as a sum of positive squares in 4 ways, for example, as 10824945849 + 45803704324 = 104043^2 + 214018^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56628650173 - 2¹ = 56628650171 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56628650171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84640 + ... + 347017.

It is an arithmetic number, because the mean of its divisors is an integer number (7495956999).

Almost surely, 2^56628650173 is an apocalyptic number.

It is an amenable number.

56628650173 is a deficient number, since it is larger than the sum of its proper divisors (3339005819).

56628650173 is a wasteful number, since it uses less digits than its factorization.

56628650173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439391.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 56628650173 in words is "fifty-six billion, six hundred twenty-eight million, six hundred fifty thousand, one hundred seventy-three".