556380747 has 24 divisors (see below), whose sum is σ = 895330800. Its totient is φ = 330579648.

The previous prime is 556380691. The next prime is 556380749. The reversal of 556380747 is 747083655.

556380747 is a `hidden beast` number, since 5 + 5 + 638 + 0 + 7 + 4 + 7 = 666.

It is not a de Polignac number, because 556380747 - 2⁸ = 556380491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (556380749) 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 23 ways as a sum of consecutive naturals, for example, 78597 + ... + 85382.

It is an arithmetic number, because the mean of its divisors is an integer number (37305450).

Almost surely, 2^556380747 is an apocalyptic number.

556380747 is a deficient number, since it is larger than the sum of its proper divisors (338950053).

556380747 is a wasteful number, since it uses less digits than its factorization.

556380747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164027 (or 164024 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The square root of 556380747 is about 23587.7244981367. The cubic root of 556380747 is about 822.4775095090.

The spelling of 556380747 in words is "five hundred fifty-six million, three hundred eighty thousand, seven hundred forty-seven".