553133261 has 2 divisors, whose sum is σ = 553133262. Its totient is φ = 553133260.

The previous prime is 553133249. The next prime is 553133323. The reversal of 553133261 is 162331355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 400240036 + 152893225 = 20006^2 + 12365^2 .

It is a cyclic number.

It is not a de Polignac number, because 553133261 - 2⁶ = 553133197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (553123261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276566630 + 276566631.

It is an arithmetic number, because the mean of its divisors is an integer number (276566631).

Almost surely, 2^553133261 is an apocalyptic number.

It is an amenable number.

553133261 is a deficient number, since it is larger than the sum of its proper divisors (1).

553133261 is an equidigital number, since it uses as much as digits as its factorization.

553133261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8100, while the sum is 29.

The square root of 553133261 is about 23518.7852790062. The cubic root of 553133261 is about 820.8741723457.

The spelling of 553133261 in words is "five hundred fifty-three million, one hundred thirty-three thousand, two hundred sixty-one".