565253123 has 4 divisors (see below), whose sum is σ = 584744640. Its totient is φ = 545761608.

The previous prime is 565253113. The next prime is 565253141. The reversal of 565253123 is 321352565.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 565253123 - 2¹⁰ = 565252099 is a prime.

It is a super-2 number, since 2×565253123² = 639022186122506258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 565253123.

It is not an unprimeable number, because it can be changed into a prime (565253113) 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, 9745715 + ... + 9745772.

It is an arithmetic number, because the mean of its divisors is an integer number (146186160).

Almost surely, 2^565253123 is an apocalyptic number.

565253123 is a deficient number, since it is larger than the sum of its proper divisors (19491517).

565253123 is a wasteful number, since it uses less digits than its factorization.

565253123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19491516.

The product of its digits is 27000, while the sum is 32.

The square root of 565253123 is about 23775.0525341165. The cubic root of 565253123 is about 826.8263782823.

The spelling of 565253123 in words is "five hundred sixty-five million, two hundred fifty-three thousand, one hundred twenty-three".