5550401 has 2 divisors, whose sum is σ = 5550402. Its totient is φ = 5550400.

The previous prime is 5550379. The next prime is 5550403. The reversal of 5550401 is 1040555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3418801 + 2131600 = 1849^2 + 1460^2 .

It is a cyclic number.

It is not a de Polignac number, because 5550401 - 2¹⁰ = 5549377 is a prime.

Together with 5550403, 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 (5550403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2775200 + 2775201.

It is an arithmetic number, because the mean of its divisors is an integer number (2775201).

Almost surely, 2^5550401 is an apocalyptic number.

It is an amenable number.

5550401 is a deficient number, since it is larger than the sum of its proper divisors (1).

5550401 is an equidigital number, since it uses as much as digits as its factorization.

5550401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 5550401 is about 2355.9289038509. The cubic root of 5550401 is about 177.0549692548.

Adding to 5550401 its reverse (1040555), we get a palindrome (6590956).

The spelling of 5550401 in words is "five million, five hundred fifty thousand, four hundred one".