565504253 has 4 divisors (see below), whose sum is σ = 565583520. Its totient is φ = 565424988.

The previous prime is 565504229. The next prime is 565504297. The reversal of 565504253 is 352405565.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 565504253 - 2¹⁴ = 565487869 is a prime.

It is a super-2 number, since 2×565504253² = 639590120322176018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565504153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27743 + ... + 43596.

It is an arithmetic number, because the mean of its divisors is an integer number (141395880).

Almost surely, 2^565504253 is an apocalyptic number.

It is an amenable number.

565504253 is a deficient number, since it is larger than the sum of its proper divisors (79267).

565504253 is an equidigital number, since it uses as much as digits as its factorization.

565504253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79266.

The product of its (nonzero) digits is 90000, while the sum is 35.

The square root of 565504253 is about 23780.3333239885. Note that the first 4 decimals coincide. The cubic root of 565504253 is about 826.9488073071.

The spelling of 565504253 in words is "five hundred sixty-five million, five hundred four thousand, two hundred fifty-three".