225751465 has 4 divisors (see below), whose sum is σ = 270901764. Its totient is φ = 180601168.

The previous prime is 225751447. The next prime is 225751469. The reversal of 225751465 is 564157522.

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 176863401 + 48888064 = 13299^2 + 6992^2 .

It is a cyclic number.

It is not a de Polignac number, because 225751465 - 2¹¹ = 225749417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225751469) 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, 22575142 + ... + 22575151.

It is an arithmetic number, because the mean of its divisors is an integer number (67725441).

Almost surely, 2^225751465 is an apocalyptic number.

It is an amenable number.

225751465 is a deficient number, since it is larger than the sum of its proper divisors (45150299).

225751465 is an equidigital number, since it uses as much as digits as its factorization.

225751465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45150298.

The product of its digits is 84000, while the sum is 37.

The square root of 225751465 is about 15025.0279533850. The cubic root of 225751465 is about 608.8965674123.

The spelling of 225751465 in words is "two hundred twenty-five million, seven hundred fifty-one thousand, four hundred sixty-five".