225795505 has 8 divisors (see below), whose sum is σ = 291797352. Its totient is φ = 166741248.

The previous prime is 225795503. The next prime is 225795511. The reversal of 225795505 is 505597522.

It can be written as a sum of positive squares in 4 ways, for example, as 30019441 + 195776064 = 5479^2 + 13992^2 .

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 225795505 - 2¹ = 225795503 is a prime.

It is a super-2 number, since 2×225795505² = 101967220156410050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225795503) 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 7 ways as a sum of consecutive naturals, for example, 1736824 + ... + 1736953.

It is an arithmetic number, because the mean of its divisors is an integer number (36474669).

Almost surely, 2^225795505 is an apocalyptic number.

It is an amenable number.

225795505 is a deficient number, since it is larger than the sum of its proper divisors (66001847).

225795505 is a wasteful number, since it uses less digits than its factorization.

225795505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3473795.

The product of its (nonzero) digits is 157500, while the sum is 40.

The square root of 225795505 is about 15026.4934365939. The cubic root of 225795505 is about 608.9361597154.

The spelling of 225795505 in words is "two hundred twenty-five million, seven hundred ninety-five thousand, five hundred five".