556631101 has 8 divisors (see below), whose sum is σ = 600750080. Its totient is φ = 512698032.

The previous prime is 556631093. The next prime is 556631111. The reversal of 556631101 is 101136655.

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 556631101 - 2³ = 556631093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 556631101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556631111) 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 7 ways as a sum of consecutive naturals, for example, 40221 + ... + 52258.

It is an arithmetic number, because the mean of its divisors is an integer number (75093760).

Almost surely, 2^556631101 is an apocalyptic number.

It is an amenable number.

556631101 is a deficient number, since it is larger than the sum of its proper divisors (44118979).

556631101 is a wasteful number, since it uses less digits than its factorization.

556631101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92955.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 556631101 is about 23593.0307718190. The cubic root of 556631101 is about 822.6008540944.

Adding to 556631101 its reverse (101136655), we get a palindrome (657767756).

The spelling of 556631101 in words is "five hundred fifty-six million, six hundred thirty-one thousand, one hundred one".