225637297338 has 8 divisors (see below), whose sum is σ = 451274594688. Its totient is φ = 75212432444.

The previous prime is 225637297337. The next prime is 225637297373. The reversal of 225637297338 is 833792736522.

225637297338 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

225637297338 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (225637297331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18803108106 + ... + 18803108117.

It is an arithmetic number, because the mean of its divisors is an integer number (56409324336).

Almost surely, 2^225637297338 is an apocalyptic number.

225637297338 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

225637297338 is a wasteful number, since it uses less digits than its factorization.

225637297338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37606216228.

The product of its digits is 22861440, while the sum is 57.

The spelling of 225637297338 in words is "two hundred twenty-five billion, six hundred thirty-seven million, two hundred ninety-seven thousand, three hundred thirty-eight".