225015012 has 18 divisors (see below), whose sum is σ = 568788038. Its totient is φ = 75004992.

The previous prime is 225014987. The next prime is 225015023. The reversal of 225015012 is 210510522.

It can be written as a sum of positive squares in only one way, i.e., 221235876 + 3779136 = 14874^2 + 1944^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 3125173 + ... + 3125244.

Almost surely, 2^225015012 is an apocalyptic number.

It is an amenable number.

225015012 is an abundant number, since it is smaller than the sum of its proper divisors (343773026).

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

225015012 is a wasteful number, since it uses less digits than its factorization.

225015012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6250427 (or 6250422 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 225015012 is about 15000.5003916536. The cubic root of 225015012 is about 608.2337260738.

Adding to 225015012 its reverse (210510522), we get a palindrome (435525534).

The spelling of 225015012 in words is "two hundred twenty-five million, fifteen thousand, twelve".