8555125064 has 8 divisors (see below), whose sum is σ = 16040859510. Its totient is φ = 4277562528.

The previous prime is 8555125063. The next prime is 8555125069. The reversal of 8555125064 is 4605215558.

It can be written as a sum of positive squares in only one way, i.e., 7633516900 + 921608164 = 87370^2 + 30358^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (8555125063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534695309 + ... + 534695324.

Almost surely, 2^8555125064 is an apocalyptic number.

It is an amenable number.

8555125064 is a deficient number, since it is larger than the sum of its proper divisors (7485734446).

8555125064 is a wasteful number, since it uses less digits than its factorization.

8555125064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069390639 (or 1069390635 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 41.

The square root of 8555125064 is about 92493.9190649850. The cubic root of 8555125064 is about 2045.2298419938.

The spelling of 8555125064 in words is "eight billion, five hundred fifty-five million, one hundred twenty-five thousand, sixty-four".