225528126 has 16 divisors (see below), whose sum is σ = 462058128. Its totient is φ = 73342400.

The previous prime is 225528113. The next prime is 225528143. The reversal of 225528126 is 621825522.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458145 + ... + 458636.

It is an arithmetic number, because the mean of its divisors is an integer number (28878633).

Almost surely, 2^225528126 is an apocalyptic number.

225528126 is an abundant number, since it is smaller than the sum of its proper divisors (236530002).

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

225528126 is a wasteful number, since it uses less digits than its factorization.

225528126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916827.

The product of its digits is 19200, while the sum is 33.

The square root of 225528126 is about 15017.5938818441. The cubic root of 225528126 is about 608.6957046023.

It can be divided in two parts, 2255 and 28126, that added together give a triangular number (30381 = T₂₄₆).

The spelling of 225528126 in words is "two hundred twenty-five million, five hundred twenty-eight thousand, one hundred twenty-six".