225765005 has 8 divisors (see below), whose sum is σ = 271596024. Its totient is φ = 180160000.

The previous prime is 225764999. The next prime is 225765041. The reversal of 225765005 is 500567522.

It can be written as a sum of positive squares in 4 ways, for example, as 105226564 + 120538441 = 10258^2 + 10979^2 .

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

It is not a de Polignac number, because 225765005 - 2¹⁰ = 225763981 is a prime.

It is a Duffinian number.

It is a congruent 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, 54296 + ... + 58305.

It is an arithmetic number, because the mean of its divisors is an integer number (33949503).

Almost surely, 2^225765005 is an apocalyptic number.

It is an amenable number.

225765005 is a deficient number, since it is larger than the sum of its proper divisors (45831019).

225765005 is a wasteful number, since it uses less digits than its factorization.

225765005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113007.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 225765005 is about 15025.4785281534. The cubic root of 225765005 is about 608.9087405259.

The spelling of 225765005 in words is "two hundred twenty-five million, seven hundred sixty-five thousand, five".