223951225 has 27 divisors (see below), whose sum is σ = 288590439. Its totient is φ = 172396800.

The previous prime is 223951219. The next prime is 223951249. The reversal of 223951225 is 522159322.

The square root of 223951225 is 14965.

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

It can be written as a sum of positive squares in 13 ways, for example, as 219128809 + 4822416 = 14803^2 + 2196^2 .

It is not a de Polignac number, because 223951225 - 2⁷ = 223951097 is a prime.

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, 3067789 + ... + 3067861.

Almost surely, 2^223951225 is an apocalyptic number.

223951225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

223951225 is the 14965-th square number.

223951225 is the 7483-rd centered octagonal number.

It is an amenable number.

223951225 is a deficient number, since it is larger than the sum of its proper divisors (64639214).

223951225 is an frugal number, since it uses more digits than its factorization.

223951225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 119 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

The cubic root of 223951225 is about 607.2737109292.

The spelling of 223951225 in words is "two hundred twenty-three million, nine hundred fifty-one thousand, two hundred twenty-five".