225020415 has 16 divisors (see below), whose sum is σ = 381211488. Its totient is φ = 112951296.

The previous prime is 225020357. The next prime is 225020417. The reversal of 225020415 is 514020522.

It is a happy number.

It is not a de Polignac number, because 225020415 - 2¹⁸ = 224758271 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225020391 and 225020400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225020417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440962 + ... + 441471.

It is an arithmetic number, because the mean of its divisors is an integer number (23825718).

Almost surely, 2^225020415 is an apocalyptic number.

225020415 is a deficient number, since it is larger than the sum of its proper divisors (156191073).

225020415 is a wasteful number, since it uses less digits than its factorization.

225020415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882458.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 225020415 is about 15000.6804845647. The cubic root of 225020415 is about 608.2385942830.

Adding to 225020415 its reverse (514020522), we get a palindrome (739040937).

The spelling of 225020415 in words is "two hundred twenty-five million, twenty thousand, four hundred fifteen".