223647225 has 12 divisors (see below), whose sum is σ = 369763536. Its totient is φ = 119278480.

The previous prime is 223647211. The next prime is 223647269. The reversal of 223647225 is 522746322.

It is not a de Polignac number, because 223647225 - 2⁶ = 223647161 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1490907 + ... + 1491056.

It is an arithmetic number, because the mean of its divisors is an integer number (30813628).

Almost surely, 2^223647225 is an apocalyptic number.

223647225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

223647225 is a deficient number, since it is larger than the sum of its proper divisors (146116311).

223647225 is a wasteful number, since it uses less digits than its factorization.

223647225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2981976 (or 2981971 counting only the distinct ones).

The product of its digits is 40320, while the sum is 33.

The square root of 223647225 is about 14954.8395176946. The cubic root of 223647225 is about 606.9988076119.

The spelling of 223647225 in words is "two hundred twenty-three million, six hundred forty-seven thousand, two hundred twenty-five".