556525525655 has 64 divisors (see below), whose sum is σ = 779308231680. Its totient is φ = 377459174400.

The previous prime is 556525525639. The next prime is 556525525729.

It is a happy number.

556525525655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 556525525655 - 2⁴ = 556525525639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 556525525655.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 30941765 + ... + 30959745.

It is an arithmetic number, because the mean of its divisors is an integer number (12176691120).

Almost surely, 2^556525525655 is an apocalyptic number.

556525525655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

556525525655 is a deficient number, since it is larger than the sum of its proper divisors (222782706025).

556525525655 is a wasteful number, since it uses less digits than its factorization.

556525525655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18632.

The product of its digits is 56250000, while the sum is 56.

The spelling of 556525525655 in words is "five hundred fifty-six billion, five hundred twenty-five million, five hundred twenty-five thousand, six hundred fifty-five".