225507355 has 4 divisors (see below), whose sum is σ = 270608832. Its totient is φ = 180405880.

The previous prime is 225507353. The next prime is 225507367. The reversal of 225507355 is 553705522.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 225507355 - 2¹ = 225507353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225507355.

It is not an unprimeable number, because it can be changed into a prime (225507353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22550731 + ... + 22550740.

It is an arithmetic number, because the mean of its divisors is an integer number (67652208).

Almost surely, 2^225507355 is an apocalyptic number.

225507355 is a deficient number, since it is larger than the sum of its proper divisors (45101477).

225507355 is an equidigital number, since it uses as much as digits as its factorization.

225507355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45101476.

The product of its (nonzero) digits is 52500, while the sum is 34.

The square root of 225507355 is about 15016.9023103968. The cubic root of 225507355 is about 608.6770171968.

The spelling of 225507355 in words is "two hundred twenty-five million, five hundred seven thousand, three hundred fifty-five".