225465865 has 16 divisors (see below), whose sum is σ = 281594880. Its totient is φ = 173091520.

The previous prime is 225465841. The next prime is 225465871. The reversal of 225465865 is 568564522.

It is not a de Polignac number, because 225465865 - 2¹¹ = 225463817 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19560 + ... + 28870.

It is an arithmetic number, because the mean of its divisors is an integer number (17599680).

Almost surely, 2^225465865 is an apocalyptic number.

It is an amenable number.

225465865 is a deficient number, since it is larger than the sum of its proper divisors (56129015).

225465865 is a wasteful number, since it uses less digits than its factorization.

225465865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9512.

The product of its digits is 576000, while the sum is 43.

The square root of 225465865 is about 15015.5208034886. The cubic root of 225465865 is about 608.6396857339.

The spelling of 225465865 in words is "two hundred twenty-five million, four hundred sixty-five thousand, eight hundred sixty-five".