553668361 has 2 divisors, whose sum is σ = 553668362. Its totient is φ = 553668360.

The previous prime is 553668289. The next prime is 553668371. The reversal of 553668361 is 163866355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 495908361 + 57760000 = 22269^2 + 7600^2 .

It is a cyclic number.

It is not a de Polignac number, because 553668361 - 2⁷ = 553668233 is a prime.

It is not a weakly prime, because it can be changed into another prime (553668371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276834180 + 276834181.

It is an arithmetic number, because the mean of its divisors is an integer number (276834181).

Almost surely, 2^553668361 is an apocalyptic number.

It is an amenable number.

553668361 is a deficient number, since it is larger than the sum of its proper divisors (1).

553668361 is an equidigital number, since it uses as much as digits as its factorization.

553668361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 43.

The square root of 553668361 is about 23530.1585417523. The cubic root of 553668361 is about 821.1387910393.

The spelling of 553668361 in words is "five hundred fifty-three million, six hundred sixty-eight thousand, three hundred sixty-one".