553531001 has 2 divisors, whose sum is σ = 553531002. Its totient is φ = 553531000.

The previous prime is 553530997. The next prime is 553531007. The reversal of 553531001 is 100135355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 519612025 + 33918976 = 22795^2 + 5824^2 .

It is a cyclic number.

It is not a de Polignac number, because 553531001 - 2² = 553530997 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (553531007) 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, 276765500 + 276765501.

It is an arithmetic number, because the mean of its divisors is an integer number (276765501).

Almost surely, 2^553531001 is an apocalyptic number.

It is an amenable number.

553531001 is a deficient number, since it is larger than the sum of its proper divisors (1).

553531001 is an equidigital number, since it uses as much as digits as its factorization.

553531001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 553531001 is about 23527.2395533348. The cubic root of 553531001 is about 821.0708797762.

Adding to 553531001 its reverse (100135355), we get a palindrome (653666356).

The spelling of 553531001 in words is "five hundred fifty-three million, five hundred thirty-one thousand, one".