225213355 has 16 divisors (see below), whose sum is σ = 283466304. Its totient is φ = 171445120.

The previous prime is 225213319. The next prime is 225213379. The reversal of 225213355 is 553312522.

It is not a de Polignac number, because 225213355 - 2⁷ = 225213227 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17685 + ... + 27625.

It is an arithmetic number, because the mean of its divisors is an integer number (17716644).

Almost surely, 2^225213355 is an apocalyptic number.

225213355 is a deficient number, since it is larger than the sum of its proper divisors (58252949).

225213355 is a wasteful number, since it uses less digits than its factorization.

225213355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10166.

The product of its digits is 9000, while the sum is 28.

The square root of 225213355 is about 15007.1101481931. The cubic root of 225213355 is about 608.4123859653.

Adding to 225213355 its reverse (553312522), we get a palindrome (778525877).

The spelling of 225213355 in words is "two hundred twenty-five million, two hundred thirteen thousand, three hundred fifty-five".