225219036 has 96 divisors (see below), whose sum is σ = 641507328. Its totient is φ = 60096960.

The previous prime is 225219031. The next prime is 225219091. The reversal of 225219036 is 630912522.

It is a super-2 number, since 2×225219036² = 101447228353538592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 225218994 and 225219012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225219031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81721 + ... + 84431.

It is an arithmetic number, because the mean of its divisors is an integer number (6682368).

Almost surely, 2^225219036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225219036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320753664).

225219036 is an abundant number, since it is smaller than the sum of its proper divisors (416288292).

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

225219036 is a wasteful number, since it uses less digits than its factorization.

225219036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2791 (or 2789 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 225219036 is about 15007.2994239470. The cubic root of 225219036 is about 608.4175016502.

The spelling of 225219036 in words is "two hundred twenty-five million, two hundred nineteen thousand, thirty-six".