556745305 has 8 divisors (see below), whose sum is σ = 672519744. Its totient is φ = 442446000.

The previous prime is 556745297. The next prime is 556745309. The reversal of 556745305 is 503547655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 556745305 - 2³ = 556745297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556745309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367951 + ... + 369460.

It is an arithmetic number, because the mean of its divisors is an integer number (84064968).

Almost surely, 2^556745305 is an apocalyptic number.

It is an amenable number.

556745305 is a deficient number, since it is larger than the sum of its proper divisors (115774439).

556745305 is a wasteful number, since it uses less digits than its factorization.

556745305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737567.

The product of its (nonzero) digits is 315000, while the sum is 40.

The square root of 556745305 is about 23595.4509386873. The cubic root of 556745305 is about 822.6571079184.

The spelling of 556745305 in words is "five hundred fifty-six million, seven hundred forty-five thousand, three hundred five".