553530997 has 2 divisors, whose sum is σ = 553530998. Its totient is φ = 553530996.

The previous prime is 553530983. The next prime is 553531001. The reversal of 553530997 is 799035355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 552767121 + 763876 = 23511^2 + 874^2 .

It is a cyclic number.

It is not a de Polignac number, because 553530997 - 2¹¹ = 553528949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (553537997) 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, 276765498 + 276765499.

It is an arithmetic number, because the mean of its divisors is an integer number (276765499).

Almost surely, 2^553530997 is an apocalyptic number.

It is an amenable number.

553530997 is a deficient number, since it is larger than the sum of its proper divisors (1).

553530997 is an equidigital number, since it uses as much as digits as its factorization.

553530997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 637875, while the sum is 46.

The square root of 553530997 is about 23527.2394683269. The cubic root of 553530997 is about 821.0708777984.

The spelling of 553530997 in words is "five hundred fifty-three million, five hundred thirty thousand, nine hundred ninety-seven".