5556543401 has 2 divisors, whose sum is σ = 5556543402. Its totient is φ = 5556543400.

The previous prime is 5556543367. The next prime is 5556543403. The reversal of 5556543401 is 1043456555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3407757376 + 2148786025 = 58376^2 + 46355^2 .

It is a cyclic number.

It is not a de Polignac number, because 5556543401 - 2⁶ = 5556543337 is a prime.

Together with 5556543403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5556543403) 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 as a sum of consecutive naturals, namely, 2778271700 + 2778271701.

It is an arithmetic number, because the mean of its divisors is an integer number (2778271701).

Almost surely, 2^5556543401 is an apocalyptic number.

It is an amenable number.

5556543401 is a deficient number, since it is larger than the sum of its proper divisors (1).

5556543401 is an equidigital number, since it uses as much as digits as its factorization.

5556543401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180000, while the sum is 38.

The square root of 5556543401 is about 74542.2256241387. The cubic root of 5556543401 is about 1771.2025833257.

Adding to 5556543401 its reverse (1043456555), we get a palindrome (6599999956).

The spelling of 5556543401 in words is "five billion, five hundred fifty-six million, five hundred forty-three thousand, four hundred one".