223218182551057 has 4 divisors (see below), whose sum is σ = 225428263566516. Its totient is φ = 221008101535600.

The previous prime is 223218182551043. The next prime is 223218182551093. The reversal of 223218182551057 is 750155281812322.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 203839839008001 + 19378343543056 = 14277249^2 + 4402084^2 .

It is a cyclic number.

It is not a de Polignac number, because 223218182551057 - 2¹⁹ = 223218182026769 is a prime.

It is a super-3 number, since 3×223218182551057³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223218182550995 and 223218182551013.

It is not an unprimeable number, because it can be changed into a prime (223218182551957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1105040507578 + ... + 1105040507779.

It is an arithmetic number, because the mean of its divisors is an integer number (56357065891629).

Almost surely, 2^{223218182551057} is an apocalyptic number.

It is an amenable number.

223218182551057 is a deficient number, since it is larger than the sum of its proper divisors (2210081015459).

223218182551057 is a wasteful number, since it uses less digits than its factorization.

223218182551057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210081015458.

The product of its (nonzero) digits is 2688000, while the sum is 52.

The spelling of 223218182551057 in words is "two hundred twenty-three trillion, two hundred eighteen billion, one hundred eighty-two million, five hundred fifty-one thousand, fifty-seven".