565257998 has 4 divisors (see below), whose sum is σ = 847887000. Its totient is φ = 282628998.

The previous prime is 565257997. The next prime is 565258009. The reversal of 565257998 is 899752565.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565257997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141314498 + ... + 141314501.

It is an arithmetic number, because the mean of its divisors is an integer number (211971750).

Almost surely, 2^565257998 is an apocalyptic number.

565257998 is a deficient number, since it is larger than the sum of its proper divisors (282629002).

565257998 is a wasteful number, since it uses less digits than its factorization.

565257998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282629001.

The product of its digits is 6804000, while the sum is 56.

The square root of 565257998 is about 23775.1550573282. The cubic root of 565257998 is about 826.8287552510.

The spelling of 565257998 in words is "five hundred sixty-five million, two hundred fifty-seven thousand, nine hundred ninety-eight".