223166484025 has 27 divisors (see below), whose sum is σ = 279653546991. Its totient is φ = 176664353040.

The previous prime is 223166483987. The next prime is 223166484043. The reversal of 223166484025 is 520484661322.

The square root of 223166484025 is 472405.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 80339934249 + 142826549776 = 283443^2 + 377924^2 .

It is not a de Polignac number, because 223166484025 - 2²¹ = 223164386873 is a prime.

It is a super-3 number, since 3×223166484025³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 252736234 + ... + 252737116.

Almost surely, 2^223166484025 is an apocalyptic number.

223166484025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

223166484025 is the 472405-th square number.

223166484025 is the 236203-rd centered octagonal number.

It is an amenable number.

223166484025 is a deficient number, since it is larger than the sum of its proper divisors (56487062966).

223166484025 is an frugal number, since it uses more digits than its factorization.

223166484025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990 (or 995 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 43.

The spelling of 223166484025 in words is "two hundred twenty-three billion, one hundred sixty-six million, four hundred eighty-four thousand, twenty-five".