5556625618 has 4 divisors (see below), whose sum is σ = 8334938430. Its totient is φ = 2778312808.

The previous prime is 5556625583. The next prime is 5556625621. The reversal of 5556625618 is 8165266555.

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

It can be written as a sum of positive squares in only one way, i.e., 5553677529 + 2948089 = 74523^2 + 1717^2 .

It is a super-2 number, since 2×5556625618² = 61752176517227763848, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1389156403 + ... + 1389156406.

Almost surely, 2^5556625618 is an apocalyptic number.

5556625618 is a deficient number, since it is larger than the sum of its proper divisors (2778312812).

5556625618 is a wasteful number, since it uses less digits than its factorization.

5556625618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2778312811.

The product of its digits is 2160000, while the sum is 49.

The square root of 5556625618 is about 74542.7771014738. Note that the first 3 decimals coincide. The cubic root of 5556625618 is about 1771.2113191071.

The spelling of 5556625618 in words is "five billion, five hundred fifty-six million, six hundred twenty-five thousand, six hundred eighteen".