224651225 has 12 divisors (see below), whose sum is σ = 279224316. Its totient is φ = 179297280.

The previous prime is 224651213. The next prime is 224651237. The reversal of 224651225 is 522156422.

It is an interprime number because it is at equal distance from previous prime (224651213) and next prime (224651237).

It can be written as a sum of positive squares in 6 ways, for example, as 44769481 + 179881744 = 6691^2 + 13412^2 .

It is not a de Polignac number, because 224651225 - 2²² = 220456921 is a prime.

It is a Duffinian number.

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, 449 + ... + 21201.

It is an arithmetic number, because the mean of its divisors is an integer number (23268693).

Almost surely, 2^224651225 is an apocalyptic number.

224651225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

224651225 is a deficient number, since it is larger than the sum of its proper divisors (54573091).

224651225 is a wasteful number, since it uses less digits than its factorization.

224651225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21196 (or 21191 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 224651225 is about 14988.3696578380. The cubic root of 224651225 is about 607.9057674033.

The spelling of 224651225 in words is "two hundred twenty-four million, six hundred fifty-one thousand, two hundred twenty-five".