224039525 has 12 divisors (see below), whose sum is σ = 279841092. Its totient is φ = 177920640.

The previous prime is 224039521. The next prime is 224039531. The reversal of 224039525 is 525930422.

224039525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 11142244 + 212897281 = 3338^2 + 14591^2 .

It is not a de Polignac number, because 224039525 - 2² = 224039521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 224039491 and 224039500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224039521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29282 + ... + 36131.

It is an arithmetic number, because the mean of its divisors is an integer number (23320091).

Almost surely, 2^224039525 is an apocalyptic number.

224039525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

224039525 is a deficient number, since it is larger than the sum of its proper divisors (55801567).

224039525 is a wasteful number, since it uses less digits than its factorization.

224039525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65560 (or 65555 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 224039525 is about 14967.9499264261. The cubic root of 224039525 is about 607.3535128634.

Adding to 224039525 its reverse (525930422), we get a palindrome (749969947).

The spelling of 224039525 in words is "two hundred twenty-four million, thirty-nine thousand, five hundred twenty-five".