8025555555 has 24 divisors (see below), whose sum is σ = 14390653680. Its totient is φ = 4132699200.

The previous prime is 8025555553. The next prime is 8025555589. The reversal of 8025555555 is 5555555208.

It is not a de Polignac number, because 8025555555 - 2¹ = 8025555553 is a prime.

It is a super-3 number, since 3×8025555555³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

8025555555 is a modest number, since divided by 555555 gives 8025 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 8025555555.

It is not an unprimeable number, because it can be changed into a prime (8025555553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3073621 + ... + 3076230.

It is an arithmetic number, because the mean of its divisors is an integer number (599610570).

Almost surely, 2^8025555555 is an apocalyptic number.

8025555555 is a deficient number, since it is larger than the sum of its proper divisors (6365098125).

8025555555 is a wasteful number, since it uses less digits than its factorization.

8025555555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6149891 (or 6149888 counting only the distinct ones).

The product of its (nonzero) digits is 1250000, while the sum is 45.

The square root of 8025555555 is about 89585.4650878143. The cubic root of 8025555555 is about 2002.1273659381.

The spelling of 8025555555 in words is "eight billion, twenty-five million, five hundred fifty-five thousand, five hundred fifty-five".