909450225 has 18 divisors (see below), whose sum is σ = 1628926806. Its totient is φ = 485040000.

The previous prime is 909450221. The next prime is 909450239. The reversal of 909450225 is 522054909.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 175907169 + 733543056 = 13263^2 + 27084^2 .

It is not a de Polignac number, because 909450225 - 2² = 909450221 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 909450225.

It is not an unprimeable number, because it can be changed into a prime (909450221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2020776 + ... + 2021225.

Almost surely, 2^909450225 is an apocalyptic number.

It is an amenable number.

909450225 is a deficient number, since it is larger than the sum of its proper divisors (719476581).

909450225 is a wasteful number, since it uses less digits than its factorization.

909450225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4042017 (or 4042009 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 909450225 is about 30157.0924493725. The cubic root of 909450225 is about 968.8569186189.

It can be divided in two parts, 9094 and 50225, that added together give a cube (59319 = 39³).

The spelling of 909450225 in words is "nine hundred nine million, four hundred fifty thousand, two hundred twenty-five".