223305125 has 8 divisors (see below), whose sum is σ = 278684952. Its totient is φ = 178644000.

The previous prime is 223305107. The next prime is 223305127. The reversal of 223305125 is 521503322.

It can be written as a sum of positive squares in 4 ways, for example, as 38725729 + 184579396 = 6223^2 + 13586^2 .

It is a de Polignac number, because none of the positive numbers 2^k-223305125 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 223305125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223305127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 893096 + ... + 893345.

It is an arithmetic number, because the mean of its divisors is an integer number (34835619).

Almost surely, 2^223305125 is an apocalyptic number.

223305125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

223305125 is a deficient number, since it is larger than the sum of its proper divisors (55379827).

223305125 is an equidigital number, since it uses as much as digits as its factorization.

223305125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1786456 (or 1786446 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 223305125 is about 14943.3973714146. The cubic root of 223305125 is about 606.6891528852.

Adding to 223305125 its reverse (521503322), we get a palindrome (744808447).

The spelling of 223305125 in words is "two hundred twenty-three million, three hundred five thousand, one hundred twenty-five".