225320272 has 20 divisors (see below), whose sum is σ = 436792480. Its totient is φ = 112599648.

The previous prime is 225320257. The next prime is 225320273. The reversal of 225320272 is 272023522.

It is a happy number.

225320272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225320273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50983 + ... + 55225.

It is an arithmetic number, because the mean of its divisors is an integer number (21839624).

Almost surely, 2^225320272 is an apocalyptic number.

It is an amenable number.

225320272 is a deficient number, since it is larger than the sum of its proper divisors (211472208).

225320272 is a wasteful number, since it uses less digits than its factorization.

225320272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7570 (or 7564 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 225320272 is about 15010.6719369920. The cubic root of 225320272 is about 608.5086492560.

Adding to 225320272 its reverse (272023522), we get a palindrome (497343794).

The spelling of 225320272 in words is "two hundred twenty-five million, three hundred twenty thousand, two hundred seventy-two".