225536388 has 48 divisors (see below), whose sum is σ = 656108544. Its totient is φ = 58580640.

The previous prime is 225536371. The next prime is 225536401. The reversal of 225536388 is 883635522.

225536388 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121120 + ... + 122967.

It is an arithmetic number, because the mean of its divisors is an integer number (13668928).

Almost surely, 2^225536388 is an apocalyptic number.

225536388 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

225536388 is an abundant number, since it is smaller than the sum of its proper divisors (430572156).

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

225536388 is a wasteful number, since it uses less digits than its factorization.

225536388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244112 (or 244110 counting only the distinct ones).

The product of its digits is 345600, while the sum is 42.

The square root of 225536388 is about 15017.8689566796. The cubic root of 225536388 is about 608.7031375001.

The spelling of 225536388 in words is "two hundred twenty-five million, five hundred thirty-six thousand, three hundred eighty-eight".