225847280 has 60 divisors (see below), whose sum is σ = 534804312. Its totient is φ = 88698240.

The previous prime is 225847277. The next prime is 225847283. The reversal of 225847280 is 82748522.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (225847277) and next prime (225847283).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225847283) 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, 278075 + ... + 278885.

Almost surely, 2^225847280 is an apocalyptic number.

225847280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225847280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267402156).

225847280 is an abundant number, since it is smaller than the sum of its proper divisors (308957032).

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

225847280 is an equidigital number, since it uses as much as digits as its factorization.

225847280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942 (or 877 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 38.

The square root of 225847280 is about 15028.2161283367. The cubic root of 225847280 is about 608.9826992604.

The spelling of 225847280 in words is "two hundred twenty-five million, eight hundred forty-seven thousand, two hundred eighty".