225313155 has 48 divisors (see below), whose sum is σ = 415134720. Its totient is φ = 112656384.

The previous prime is 225313141. The next prime is 225313171. The reversal of 225313155 is 551313522.

It is a happy number.

It is not a de Polignac number, because 225313155 - 2¹⁵ = 225280387 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 292611 + ... + 293379.

It is an arithmetic number, because the mean of its divisors is an integer number (8648640).

Almost surely, 2^225313155 is an apocalyptic number.

225313155 is a deficient number, since it is larger than the sum of its proper divisors (189821565).

225313155 is a wasteful number, since it uses less digits than its factorization.

225313155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180 (or 1177 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 225313155 is about 15010.4348704493. The cubic root of 225313155 is about 608.5022423733.

Adding to 225313155 its reverse (551313522), we get a palindrome (776626677).

The spelling of 225313155 in words is "two hundred twenty-five million, three hundred thirteen thousand, one hundred fifty-five".