556110001 has 4 divisors (see below), whose sum is σ = 588822372. Its totient is φ = 523397632.

The previous prime is 556109971. The next prime is 556110029. The reversal of 556110001 is 100011655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100011655 = 5 ⋅20002331.

It can be written as a sum of positive squares in 2 ways, for example, as 509856400 + 46253601 = 22580^2 + 6801^2 .

It is not a de Polignac number, because 556110001 - 2¹¹ = 556107953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556110091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16356160 + ... + 16356193.

It is an arithmetic number, because the mean of its divisors is an integer number (147205593).

Almost surely, 2^556110001 is an apocalyptic number.

It is an amenable number.

556110001 is a deficient number, since it is larger than the sum of its proper divisors (32712371).

556110001 is a wasteful number, since it uses less digits than its factorization.

556110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32712370.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 556110001 is about 23581.9846705064. The cubic root of 556110001 is about 822.3440765273.

Adding to 556110001 its reverse (100011655), we get a palindrome (656121656).

The spelling of 556110001 in words is "five hundred fifty-six million, one hundred ten thousand, one".