225837738522 has 64 divisors (see below), whose sum is σ = 552508387200. Its totient is φ = 67807808640.

The previous prime is 225837738521. The next prime is 225837738527.

It is a happy number.

225837738522 is a `hidden beast` number, since 2 + 2 + 5 + 83 + 7 + 7 + 38 + 522 = 666.

225837738522 is nontrivially palindromic in base 10.

225837738522 is digitally balanced in base 2, 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 (54).

It is not an unprimeable number, because it can be changed into a prime (225837738521) 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 31 ways as a sum of consecutive naturals, for example, 1679283 + ... + 1808774.

It is an arithmetic number, because the mean of its divisors is an integer number (8632943550).

Almost surely, 2^225837738522 is an apocalyptic number.

225837738522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

225837738522 is an abundant number, since it is smaller than the sum of its proper divisors (326670648678).

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

225837738522 is a wasteful number, since it uses less digits than its factorization.

225837738522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3488188 (or 3488182 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 54.

The spelling of 225837738522 in words is "two hundred twenty-five billion, eight hundred thirty-seven million, seven hundred thirty-eight thousand, five hundred twenty-two".