452540565 has 24 divisors (see below), whose sum is σ = 789679800. Its totient is φ = 239731584.

The previous prime is 452540533. The next prime is 452540567. The reversal of 452540565 is 565045254.

452540565 is a `hidden beast` number, since 4 + 52 + 5 + 40 + 565 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 53100369 + 399440196 = 7287^2 + 19986^2 .

It is not a de Polignac number, because 452540565 - 2⁵ = 452540533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452540567) 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, 27042 + ... + 40451.

It is an arithmetic number, because the mean of its divisors is an integer number (32903325).

Almost surely, 2^452540565 is an apocalyptic number.

452540565 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

452540565 is a deficient number, since it is larger than the sum of its proper divisors (337139235).

452540565 is a wasteful number, since it uses less digits than its factorization.

452540565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67653 (or 67650 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The square root of 452540565 is about 21273.0008461430. Note that the first 3 decimals coincide. The cubic root of 452540565 is about 767.7488446733.

Subtracting from 452540565 its sum of digits (36), we obtain a square (452540529 = 21273²).

The spelling of 452540565 in words is "four hundred fifty-two million, five hundred forty thousand, five hundred sixty-five".