225534402 has 16 divisors (see below), whose sum is σ = 501187680. Its totient is φ = 75178116.

The previous prime is 225534371. The next prime is 225534431. The reversal of 225534402 is 204435522.

It is a happy number.

225534402 is a `hidden beast` number, since 2 + 255 + 3 + 4 + 402 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2088228 + ... + 2088335.

It is an arithmetic number, because the mean of its divisors is an integer number (31324230).

Almost surely, 2^225534402 is an apocalyptic number.

225534402 is an abundant number, since it is smaller than the sum of its proper divisors (275653278).

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

225534402 is a wasteful number, since it uses less digits than its factorization.

225534402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4176574 (or 4176568 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 225534402 is about 15017.8028353018. The cubic root of 225534402 is about 608.7013508143.

Adding to 225534402 its reverse (204435522), we get a palindrome (429969924).

The spelling of 225534402 in words is "two hundred twenty-five million, five hundred thirty-four thousand, four hundred two".