223085506549 has 2 divisors, whose sum is σ = 223085506550. Its totient is φ = 223085506548.

The previous prime is 223085506519. The next prime is 223085506601. The reversal of 223085506549 is 945605580322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186812399524 + 36273107025 = 432218^2 + 190455^2 .

It is a cyclic number.

It is not a de Polignac number, because 223085506549 - 2¹⁵ = 223085473781 is a prime.

It is a super-3 number, since 3×223085506549³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223085506519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111542753274 + 111542753275.

It is an arithmetic number, because the mean of its divisors is an integer number (111542753275).

Almost surely, 2^223085506549 is an apocalyptic number.

It is an amenable number.

223085506549 is a deficient number, since it is larger than the sum of its proper divisors (1).

223085506549 is an equidigital number, since it uses as much as digits as its factorization.

223085506549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592000, while the sum is 49.

The spelling of 223085506549 in words is "two hundred twenty-three billion, eighty-five million, five hundred six thousand, five hundred forty-nine".