556661051 has 8 divisors (see below), whose sum is σ = 570113808. Its totient is φ = 543348000.

The previous prime is 556661033. The next prime is 556661057. The reversal of 556661051 is 150166655.

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

It is a cyclic number.

It is not a de Polignac number, because 556661051 - 2²⁶ = 489552187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (556661057) 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 7 ways as a sum of consecutive naturals, for example, 26840 + ... + 42821.

It is an arithmetic number, because the mean of its divisors is an integer number (71264226).

Almost surely, 2^556661051 is an apocalyptic number.

556661051 is a deficient number, since it is larger than the sum of its proper divisors (13452757).

556661051 is a wasteful number, since it uses less digits than its factorization.

556661051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69853.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 556661051 is about 23593.6654846168. The cubic root of 556661051 is about 822.6156074045.

The spelling of 556661051 in words is "five hundred fifty-six million, six hundred sixty-one thousand, fifty-one".