223523631675557 has 2 divisors, whose sum is σ = 223523631675558. Its totient is φ = 223523631675556.

The previous prime is 223523631675529. The next prime is 223523631675563. The reversal of 223523631675557 is 755576136325322.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125344347841441 + 98179283834116 = 11195729^2 + 9908546^2 .

It is a cyclic number.

It is not a de Polignac number, because 223523631675557 - 2⁸ = 223523631675301 is a prime.

It is a super-2 number, since 2×223523631675557² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 223523631675557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223523631675257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111761815837778 + 111761815837779.

It is an arithmetic number, because the mean of its divisors is an integer number (111761815837779).

Almost surely, 2^{223523631675557} is an apocalyptic number.

It is an amenable number.

223523631675557 is a deficient number, since it is larger than the sum of its proper divisors (1).

223523631675557 is an equidigital number, since it uses as much as digits as its factorization.

223523631675557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 238140000, while the sum is 62.

The spelling of 223523631675557 in words is "two hundred twenty-three trillion, five hundred twenty-three billion, six hundred thirty-one million, six hundred seventy-five thousand, five hundred fifty-seven".