225355122 has 20 divisors (see below), whose sum is σ = 504962766. Its totient is φ = 75118320.

The previous prime is 225355069. The next prime is 225355129. The reversal of 225355122 is 221553522.

225355122 is a `hidden beast` number, since 2 + 2 + 535 + 5 + 122 = 666.

It can be written as a sum of positive squares in only one way, i.e., 147403881 + 77951241 = 12141^2 + 8829^2 .

It is a super-3 number, since 3×225355122³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (225355129) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 695379 + ... + 695702.

Almost surely, 2^225355122 is an apocalyptic number.

225355122 is an abundant number, since it is smaller than the sum of its proper divisors (279607644).

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

225355122 is a wasteful number, since it uses less digits than its factorization.

225355122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391095 (or 1391086 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 225355122 is about 15011.8327328811. The cubic root of 225355122 is about 608.5400200584.

It can be divided in two parts, 2253 and 55122, that added together give a palindrome (57375).

The spelling of 225355122 in words is "two hundred twenty-five million, three hundred fifty-five thousand, one hundred twenty-two".