556236645 has 16 divisors (see below), whose sum is σ = 892311552. Its totient is φ = 295881920.

The previous prime is 556236631. The next prime is 556236683. The reversal of 556236645 is 546632655.

It is not a de Polignac number, because 556236645 - 2⁶ = 556236581 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 556236597 and 556236606.

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 15 ways as a sum of consecutive naturals, for example, 42666 + ... + 54155.

It is an arithmetic number, because the mean of its divisors is an integer number (55769472).

Almost surely, 2^556236645 is an apocalyptic number.

It is an amenable number.

556236645 is a deficient number, since it is larger than the sum of its proper divisors (336074907).

556236645 is a wasteful number, since it uses less digits than its factorization.

556236645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97212.

The product of its digits is 648000, while the sum is 42.

The square root of 556236645 is about 23584.6697030084. The cubic root of 556236645 is about 822.4064964552.

The spelling of 556236645 in words is "five hundred fifty-six million, two hundred thirty-six thousand, six hundred forty-five".