565563642 has 64 divisors (see below), whose sum is σ = 1309526784. Its totient is φ = 159505920.

The previous prime is 565563637. The next prime is 565563653. The reversal of 565563642 is 246365565.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 565563594 and 565563603.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2012542 + ... + 2012822.

It is an arithmetic number, because the mean of its divisors is an integer number (20461356).

Almost surely, 2^565563642 is an apocalyptic number.

565563642 is an abundant number, since it is smaller than the sum of its proper divisors (743963142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

565563642 is a wasteful number, since it uses less digits than its factorization.

565563642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743.

The product of its digits is 648000, while the sum is 42.

The square root of 565563642 is about 23781.5819911124. The cubic root of 565563642 is about 826.9777548899.

The spelling of 565563642 in words is "five hundred sixty-five million, five hundred sixty-three thousand, six hundred forty-two".