225013020065 has 4 divisors (see below), whose sum is σ = 270015624084. Its totient is φ = 180010416048.

The previous prime is 225013020061. The next prime is 225013020073. The reversal of 225013020065 is 560020310522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36698681761 + 188314338304 = 191569^2 + 433952^2 .

It is a cyclic number.

It is not a de Polignac number, because 225013020065 - 2² = 225013020061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (225013020061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22501302002 + ... + 22501302011.

It is an arithmetic number, because the mean of its divisors is an integer number (67503906021).

Almost surely, 2^225013020065 is an apocalyptic number.

It is an amenable number.

225013020065 is a deficient number, since it is larger than the sum of its proper divisors (45002604019).

225013020065 is an equidigital number, since it uses as much as digits as its factorization.

225013020065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45002604018.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 225013020065 its reverse (560020310522), we get a palindrome (785033330587).

The spelling of 225013020065 in words is "two hundred twenty-five billion, thirteen million, twenty thousand, sixty-five".