225617274020 has 24 divisors (see below), whose sum is σ = 475202213304. Its totient is φ = 89979111936.

The previous prime is 225617273983. The next prime is 225617274023. The reversal of 225617274020 is 20472716522.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 63451594816 + 162165679204 = 251896^2 + 402698^2 .

It is not an unprimeable number, because it can be changed into a prime (225617274023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16730447 + ... + 16743926.

It is an arithmetic number, because the mean of its divisors is an integer number (19800092221).

Almost surely, 2^225617274020 is an apocalyptic number.

225617274020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225617274020 is an abundant number, since it is smaller than the sum of its proper divisors (249584939284).

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

225617274020 is a wasteful number, since it uses less digits than its factorization.

225617274020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33474719 (or 33474717 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 38.

The spelling of 225617274020 in words is "two hundred twenty-five billion, six hundred seventeen million, two hundred seventy-four thousand, twenty".