225782508 has 96 divisors (see below), whose sum is σ = 652506624. Its totient is φ = 59286528.

The previous prime is 225782507. The next prime is 225782569. The reversal of 225782508 is 805287522.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (225782507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59566 + ... + 63242.

It is an arithmetic number, because the mean of its divisors is an integer number (6796944).

Almost surely, 2^225782508 is an apocalyptic number.

225782508 is a gapful number since it is divisible by the number (28) 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 225782508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326253312).

225782508 is an abundant number, since it is smaller than the sum of its proper divisors (426724116).

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

225782508 is a wasteful number, since it uses less digits than its factorization.

225782508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3751 (or 3749 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 225782508 is about 15026.0609608773. The cubic root of 225782508 is about 608.9244758466.

The spelling of 225782508 in words is "two hundred twenty-five million, seven hundred eighty-two thousand, five hundred eight".