225810036 has 18 divisors (see below), whose sum is σ = 570797682. Its totient is φ = 75270000.

The previous prime is 225810029. The next prime is 225810059. The reversal of 225810036 is 630018522.

It can be written as a sum of positive squares in only one way, i.e., 211702500 + 14107536 = 14550^2 + 3756^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 225809991 and 225810009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3136215 + ... + 3136286.

Almost surely, 2^225810036 is an apocalyptic number.

It is an amenable number.

225810036 is an abundant number, since it is smaller than the sum of its proper divisors (344987646).

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

225810036 is a wasteful number, since it uses less digits than its factorization.

225810036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6272511 (or 6272506 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 225810036 is about 15026.9769414876. The cubic root of 225810036 is about 608.9492220680.

Adding to 225810036 its reverse (630018522), we get a palindrome (855828558).

The spelling of 225810036 in words is "two hundred twenty-five million, eight hundred ten thousand, thirty-six".