565385047 has 4 divisors (see below), whose sum is σ = 565824960. Its totient is φ = 564945136.

The previous prime is 565384969. The next prime is 565385059. The reversal of 565385047 is 740583565.

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 565385047 - 2¹⁵ = 565352279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 565384994 and 565385012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565385087) 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, 218023 + ... + 220600.

It is an arithmetic number, because the mean of its divisors is an integer number (141456240).

Almost surely, 2^565385047 is an apocalyptic number.

565385047 is a deficient number, since it is larger than the sum of its proper divisors (439913).

565385047 is a wasteful number, since it uses less digits than its factorization.

565385047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439912.

The product of its (nonzero) digits is 504000, while the sum is 43.

The square root of 565385047 is about 23777.8267930440. The cubic root of 565385047 is about 826.8906974070.

It can be divided in two parts, 5 and 65385047, that multiplied together give a triangular number (326925235 = T₂₅₅₇₀).

The spelling of 565385047 in words is "five hundred sixty-five million, three hundred eighty-five thousand, forty-seven".