223445231225 has 6 divisors (see below), whose sum is σ = 277072086750. Its totient is φ = 178756184960.

The previous prime is 223445231209. The next prime is 223445231237. The reversal of 223445231225 is 522132544322.

It can be written as a sum of positive squares in 3 ways, for example, as 17440900096 + 206004331129 = 132064^2 + 453877^2 .

It is not a de Polignac number, because 223445231225 - 2⁴ = 223445231209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4468904600 + ... + 4468904649.

It is an arithmetic number, because the mean of its divisors is an integer number (46178681125).

Almost surely, 2^223445231225 is an apocalyptic number.

223445231225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

223445231225 is a deficient number, since it is larger than the sum of its proper divisors (53626855525).

223445231225 is an equidigital number, since it uses as much as digits as its factorization.

223445231225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8937809259 (or 8937809254 counting only the distinct ones).

The product of its digits is 115200, while the sum is 35.

Adding to 223445231225 its reverse (522132544322), we get a palindrome (745577775547).

The spelling of 223445231225 in words is "two hundred twenty-three billion, four hundred forty-five million, two hundred thirty-one thousand, two hundred twenty-five".