553668161 has 2 divisors, whose sum is σ = 553668162. Its totient is φ = 553668160.

The previous prime is 553668127. The next prime is 553668179. The reversal of 553668161 is 161866355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312052225 + 241615936 = 17665^2 + 15544^2 .

It is a cyclic number.

It is not a de Polignac number, because 553668161 - 2¹⁰ = 553667137 is a prime.

It is not a weakly prime, because it can be changed into another prime (553668361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276834080 + 276834081.

It is an arithmetic number, because the mean of its divisors is an integer number (276834081).

Almost surely, 2^553668161 is an apocalyptic number.

It is an amenable number.

553668161 is a deficient number, since it is larger than the sum of its proper divisors (1).

553668161 is an equidigital number, since it uses as much as digits as its factorization.

553668161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 41.

The square root of 553668161 is about 23530.1542918868. The cubic root of 553668161 is about 821.1386921667.

The spelling of 553668161 in words is "five hundred fifty-three million, six hundred sixty-eight thousand, one hundred sixty-one".