225894505 has 8 divisors (see below), whose sum is σ = 273052872. Its totient is φ = 179395968.

The previous prime is 225894499. The next prime is 225894511. The reversal of 225894505 is 505498522.

It is an interprime number because it is at equal distance from previous prime (225894499) and next prime (225894511).

It can be written as a sum of positive squares in 4 ways, for example, as 92006464 + 133888041 = 9592^2 + 11571^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225894505 - 2¹⁵ = 225861737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164202 + ... + 165571.

It is an arithmetic number, because the mean of its divisors is an integer number (34131609).

Almost surely, 2^225894505 is an apocalyptic number.

It is an amenable number.

225894505 is a deficient number, since it is larger than the sum of its proper divisors (47158367).

225894505 is a wasteful number, since it uses less digits than its factorization.

225894505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329915.

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 225894505 is about 15029.7872573101. The cubic root of 225894505 is about 609.0251426963.

The spelling of 225894505 in words is "two hundred twenty-five million, eight hundred ninety-four thousand, five hundred five".