5555666572 has 24 divisors (see below), whose sum is σ = 10357499376. Its totient is φ = 2598386688.

The previous prime is 5555666563. The next prime is 5555666573. The reversal of 5555666572 is 2756665555.

It is not an unprimeable number, because it can be changed into a prime (5555666573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239533 + ... + 261700.

It is an arithmetic number, because the mean of its divisors is an integer number (431562474).

Almost surely, 2^5555666572 is an apocalyptic number.

It is an amenable number.

5555666572 is a deficient number, since it is larger than the sum of its proper divisors (4801832804).

5555666572 is a wasteful number, since it uses less digits than its factorization.

5555666572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501417 (or 501415 counting only the distinct ones).

The product of its digits is 9450000, while the sum is 52.

The square root of 5555666572 is about 74536.3439672218. The cubic root of 5555666572 is about 1771.1094124834.

The spelling of 5555666572 in words is "five billion, five hundred fifty-five million, six hundred sixty-six thousand, five hundred seventy-two".