52255565 has 4 divisors (see below), whose sum is σ = 62706684. Its totient is φ = 41804448.

The previous prime is 52255561. The next prime is 52255571. The reversal of 52255565 is 56555225.

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 7070281 + 45185284 = 2659^2 + 6722^2 .

It is a cyclic number.

It is not a de Polignac number, because 52255565 - 2² = 52255561 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52255561) 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, 5225552 + ... + 5225561.

It is an arithmetic number, because the mean of its divisors is an integer number (15676671).

Almost surely, 2^52255565 is an apocalyptic number.

It is an amenable number.

52255565 is a deficient number, since it is larger than the sum of its proper divisors (10451119).

52255565 is a wasteful number, since it uses less digits than its factorization.

52255565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10451118.

The product of its digits is 75000, while the sum is 35.

The square root of 52255565 is about 7228.8010762505. The cubic root of 52255565 is about 373.8615905237.

The spelling of 52255565 in words is "fifty-two million, two hundred fifty-five thousand, five hundred sixty-five".