556646051 has 16 divisors (see below), whose sum is σ = 626486784. Its totient is φ = 491176224.

The previous prime is 556646029. The next prime is 556646071. The reversal of 556646051 is 150646655.

It is a cyclic number.

It is not a de Polignac number, because 556646051 - 2¹⁰ = 556645027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 556645996 and 556646014.

It is not an unprimeable number, because it can be changed into a prime (556646071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15680 + ... + 36866.

It is an arithmetic number, because the mean of its divisors is an integer number (39155424).

Almost surely, 2^556646051 is an apocalyptic number.

556646051 is a deficient number, since it is larger than the sum of its proper divisors (69840733).

556646051 is a wasteful number, since it uses less digits than its factorization.

556646051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21290.

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 556646051 is about 23593.3476005420. The cubic root of 556646051 is about 822.6082185007.

The spelling of 556646051 in words is "five hundred fifty-six million, six hundred forty-six thousand, fifty-one".