8125628206555 has 4 divisors (see below), whose sum is σ = 9750753847872. Its totient is φ = 6500502565240.

The previous prime is 8125628206529. The next prime is 8125628206559. The reversal of 8125628206555 is 5556028265218.

It is a happy number.

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

It is not a de Polignac number, because 8125628206555 - 2¹⁹ = 8125627682267 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8125628206496 and 8125628206505.

It is not an unprimeable number, because it can be changed into a prime (8125628206559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 812562820651 + ... + 812562820660.

It is an arithmetic number, because the mean of its divisors is an integer number (2437688461968).

Almost surely, 2^{8125628206555} is an apocalyptic number.

8125628206555 is a deficient number, since it is larger than the sum of its proper divisors (1625125641317).

8125628206555 is a wasteful number, since it uses less digits than its factorization.

8125628206555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625125641316.

The product of its (nonzero) digits is 11520000, while the sum is 55.

The spelling of 8125628206555 in words is "eight trillion, one hundred twenty-five billion, six hundred twenty-eight million, two hundred six thousand, five hundred fifty-five".