225580155 has 32 divisors (see below), whose sum is σ = 374492160. Its totient is φ = 115864320.

The previous prime is 225580153. The next prime is 225580207. The reversal of 225580155 is 551085522.

It is not a de Polignac number, because 225580155 - 2¹ = 225580153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225580151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46264 + ... + 50906.

It is an arithmetic number, because the mean of its divisors is an integer number (11702880).

Almost surely, 2^225580155 is an apocalyptic number.

225580155 is a deficient number, since it is larger than the sum of its proper divisors (148912005).

225580155 is a wasteful number, since it uses less digits than its factorization.

225580155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4771.

The product of its (nonzero) digits is 20000, while the sum is 33.

The square root of 225580155 is about 15019.3260501262. The cubic root of 225580155 is about 608.7425093982.

The spelling of 225580155 in words is "two hundred twenty-five million, five hundred eighty thousand, one hundred fifty-five".