225432665505 has 24 divisors (see below), whose sum is σ = 390761891520. Its totient is φ = 120227081760.

The previous prime is 225432665503. The next prime is 225432665537. The reversal of 225432665505 is 505566234522.

225432665505 is a `hidden beast` number, since 2 + 2 + 5 + 4 + 32 + 66 + 550 + 5 = 666.

It is not a de Polignac number, because 225432665505 - 2¹ = 225432665503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (225432665503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2081586 + ... + 2187204.

It is an arithmetic number, because the mean of its divisors is an integer number (16281745480).

Almost surely, 2^225432665505 is an apocalyptic number.

It is an amenable number.

225432665505 is a deficient number, since it is larger than the sum of its proper divisors (165329226015).

225432665505 is a wasteful number, since it uses less digits than its factorization.

225432665505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153061 (or 153058 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 45.

The spelling of 225432665505 in words is "two hundred twenty-five billion, four hundred thirty-two million, six hundred sixty-five thousand, five hundred five".