556267645 has 4 divisors (see below), whose sum is σ = 667521180. Its totient is φ = 445014112.

The previous prime is 556267643. The next prime is 556267667. The reversal of 556267645 is 546762655.

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

It can be written as a sum of positive squares in 2 ways, for example, as 177342489 + 378925156 = 13317^2 + 19466^2 .

It is a cyclic number.

It is not a de Polignac number, because 556267645 - 2¹ = 556267643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 556267595 and 556267604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556267643) 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 3 ways as a sum of consecutive naturals, for example, 55626760 + ... + 55626769.

It is an arithmetic number, because the mean of its divisors is an integer number (166880295).

Almost surely, 2^556267645 is an apocalyptic number.

It is an amenable number.

556267645 is a deficient number, since it is larger than the sum of its proper divisors (111253535).

556267645 is a wasteful number, since it uses less digits than its factorization.

556267645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111253534.

The product of its digits is 1512000, while the sum is 46.

The square root of 556267645 is about 23585.3269004269. The cubic root of 556267645 is about 822.4217742020.

The spelling of 556267645 in words is "five hundred fifty-six million, two hundred sixty-seven thousand, six hundred forty-five".