225122547204 has 54 divisors (see below), whose sum is σ = 600586663950. Its totient is φ = 71091326592.

The previous prime is 225122547197. The next prime is 225122547289. The reversal of 225122547204 is 402745221522.

225122547204 is a `hidden beast` number, since 22 + 51 + 22 + 547 + 20 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 182074596804 + 43047950400 = 426702^2 + 207480^2 .

It is a super-2 number, since 2×225122547204² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8648229 + ... + 8674220.

Almost surely, 2^225122547204 is an apocalyptic number.

It is an amenable number.

225122547204 is an abundant number, since it is smaller than the sum of its proper divisors (375464116746).

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

225122547204 is a wasteful number, since it uses less digits than its factorization.

225122547204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17322497 (or 17322473 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 36.

Adding to 225122547204 its reverse (402745221522), we get a palindrome (627867768726).

The spelling of 225122547204 in words is "two hundred twenty-five billion, one hundred twenty-two million, five hundred forty-seven thousand, two hundred four".