223056899509 has 2 divisors, whose sum is σ = 223056899510. Its totient is φ = 223056899508.

The previous prime is 223056899491. The next prime is 223056899557. The reversal of 223056899509 is 905998650322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220726134225 + 2330765284 = 469815^2 + 48278^2 .

It is a cyclic number.

It is not a de Polignac number, because 223056899509 - 2¹¹ = 223056897461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223056899609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111528449754 + 111528449755.

It is an arithmetic number, because the mean of its divisors is an integer number (111528449755).

Almost surely, 2^223056899509 is an apocalyptic number.

It is an amenable number.

223056899509 is a deficient number, since it is larger than the sum of its proper divisors (1).

223056899509 is an equidigital number, since it uses as much as digits as its factorization.

223056899509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10497600, while the sum is 58.

The spelling of 223056899509 in words is "two hundred twenty-three billion, fifty-six million, eight hundred ninety-nine thousand, five hundred nine".