553623401 has 2 divisors, whose sum is σ = 553623402. Its totient is φ = 553623400.

The previous prime is 553623361. The next prime is 553623419. The reversal of 553623401 is 104326355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 410103001 + 143520400 = 20251^2 + 11980^2 .

It is a cyclic number.

It is not a de Polignac number, because 553623401 - 2⁶ = 553623337 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (553623101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276811700 + 276811701.

It is an arithmetic number, because the mean of its divisors is an integer number (276811701).

Almost surely, 2^553623401 is an apocalyptic number.

It is an amenable number.

553623401 is a deficient number, since it is larger than the sum of its proper divisors (1).

553623401 is an equidigital number, since it uses as much as digits as its factorization.

553623401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 553623401 is about 23529.2031526782. The cubic root of 553623401 is about 821.1165638951.

Adding to 553623401 its reverse (104326355), we get a palindrome (657949756).

The spelling of 553623401 in words is "five hundred fifty-three million, six hundred twenty-three thousand, four hundred one".