556551107 has 16 divisors (see below), whose sum is σ = 657330432. Its totient is φ = 461311200.

The previous prime is 556551101. The next prime is 556551131. The reversal of 556551107 is 701155655.

It is not a de Polignac number, because 556551107 - 2⁶ = 556551043 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556551101) 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 15 ways as a sum of consecutive naturals, for example, 21248 + ... + 39554.

It is an arithmetic number, because the mean of its divisors is an integer number (41083152).

Almost surely, 2^556551107 is an apocalyptic number.

556551107 is a deficient number, since it is larger than the sum of its proper divisors (100779325).

556551107 is a wasteful number, since it uses less digits than its factorization.

556551107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18458.

The product of its (nonzero) digits is 26250, while the sum is 35.

The square root of 556551107 is about 23591.3354221417. The cubic root of 556551107 is about 822.5614466155.

The spelling of 556551107 in words is "five hundred fifty-six million, five hundred fifty-one thousand, one hundred seven".