565261243 has 8 divisors (see below), whose sum is σ = 585064080. Its totient is φ = 545479200.

The previous prime is 565261231. The next prime is 565261259. The reversal of 565261243 is 342162565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-565261243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 565261199 and 565261208.

It is not an unprimeable number, because it can be changed into a prime (565261043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67593 + ... + 75493.

It is an arithmetic number, because the mean of its divisors is an integer number (73133010).

Almost surely, 2^565261243 is an apocalyptic number.

565261243 is a deficient number, since it is larger than the sum of its proper divisors (19802837).

565261243 is a wasteful number, since it uses less digits than its factorization.

565261243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10397.

The product of its digits is 43200, while the sum is 34.

The square root of 565261243 is about 23775.2233007389. The cubic root of 565261243 is about 826.8303374514.

It can be divided in two parts, 565261 and 243, that added together give a square (565504 = 752²).

The spelling of 565261243 in words is "five hundred sixty-five million, two hundred sixty-one thousand, two hundred forty-three".