565488399 has 32 divisors (see below), whose sum is σ = 893009920. Its totient is φ = 311586912.

The previous prime is 565488397. The next prime is 565488421. The reversal of 565488399 is 993884565.

565488399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 23780²-1.

It is not a de Polignac number, because 565488399 - 2¹ = 565488397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565488397) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67374 + ... + 75300.

It is an arithmetic number, because the mean of its divisors is an integer number (27906560).

Almost surely, 2^565488399 is an apocalyptic number.

565488399 is a deficient number, since it is larger than the sum of its proper divisors (327521521).

565488399 is a wasteful number, since it uses less digits than its factorization.

565488399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8059.

The product of its digits is 9331200, while the sum is 57.

The square root of 565488399 is about 23779.9999789739. Note that the first 4 decimals coincide. The cubic root of 565488399 is about 826.9410793552.

The spelling of 565488399 in words is "five hundred sixty-five million, four hundred eighty-eight thousand, three hundred ninety-nine".