225039320 has 32 divisors (see below), whose sum is σ = 552370320. Its totient is φ = 81832320.

The previous prime is 225039299. The next prime is 225039341. The reversal of 225039320 is 23930522.

225039320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (225039299) and next prime (225039341).

It is a self number, because there is not a number n which added to its sum of digits gives 225039320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255287 + ... + 256166.

Almost surely, 2^225039320 is an apocalyptic number.

225039320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225039320 is an abundant number, since it is smaller than the sum of its proper divisors (327331000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225039320 is a wasteful number, since it uses less digits than its factorization.

225039320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511475 (or 511471 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 225039320 is about 15001.3106094101. The cubic root of 225039320 is about 608.2556274466.

Adding to 225039320 its reverse (23930522), we get a palindrome (248969842).

The spelling of 225039320 in words is "two hundred twenty-five million, thirty-nine thousand, three hundred twenty".