566535253 has 4 divisors (see below), whose sum is σ = 580353228. Its totient is φ = 552717280.

The previous prime is 566535247. The next prime is 566535257. The reversal of 566535253 is 352535665.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 352535665 = 5 ⋅70507133.

It can be written as a sum of positive squares in 2 ways, for example, as 27227524 + 539307729 = 5218^2 + 23223^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-566535253 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566535257) 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, 6908926 + ... + 6909007.

It is an arithmetic number, because the mean of its divisors is an integer number (145088307).

Almost surely, 2^566535253 is an apocalyptic number.

It is an amenable number.

566535253 is a deficient number, since it is larger than the sum of its proper divisors (13817975).

566535253 is a wasteful number, since it uses less digits than its factorization.

566535253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13817974.

The product of its digits is 405000, while the sum is 40.

The square root of 566535253 is about 23802.0010293252. The cubic root of 566535253 is about 827.4510532288.

The spelling of 566535253 in words is "five hundred sixty-six million, five hundred thirty-five thousand, two hundred fifty-three".