225020115 has 24 divisors (see below), whose sum is σ = 394063488. Its totient is φ = 118771200.

The previous prime is 225020113. The next prime is 225020129. The reversal of 225020115 is 511020522.

225020115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 225020115 - 2¹ = 225020113 is a prime.

It is a super-2 number, since 2×225020115² = 101268104309226450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (225020113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21411 + ... + 30140.

It is an arithmetic number, because the mean of its divisors is an integer number (16419312).

Almost surely, 2^225020115 is an apocalyptic number.

225020115 is a deficient number, since it is larger than the sum of its proper divisors (169043373).

225020115 is a wasteful number, since it uses less digits than its factorization.

225020115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51659 (or 51656 counting only the distinct ones).

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

The square root of 225020115 is about 15000.6704850150. The cubic root of 225020115 is about 608.2383239792.

Adding to 225020115 its reverse (511020522), we get a palindrome (736040637).

The spelling of 225020115 in words is "two hundred twenty-five million, twenty thousand, one hundred fifteen".