556941065 has 16 divisors (see below), whose sum is σ = 674947728. Its totient is φ = 441163776.

The previous prime is 556941019. The next prime is 556941079. The reversal of 556941065 is 560149655.

It can be written as a sum of positive squares in 8 ways, for example, as 70694464 + 486246601 = 8408^2 + 22051^2 .

It is a cyclic number.

It is not a de Polignac number, because 556941065 - 2¹⁸ = 556678921 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 223607 + ... + 226083.

It is an arithmetic number, because the mean of its divisors is an integer number (42184233).

Almost surely, 2^556941065 is an apocalyptic number.

It is an amenable number.

556941065 is a deficient number, since it is larger than the sum of its proper divisors (118006663).

556941065 is a wasteful number, since it uses less digits than its factorization.

556941065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2908.

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 556941065 is about 23599.5988313361. The cubic root of 556941065 is about 822.7535161458.

The spelling of 556941065 in words is "five hundred fifty-six million, nine hundred forty-one thousand, sixty-five".