565250399 has 16 divisors (see below), whose sum is σ = 680716800. Its totient is φ = 458517024.

The previous prime is 565250393. The next prime is 565250401. The reversal of 565250399 is 993052565.

It is not a de Polignac number, because 565250399 - 2²⁰ = 564201823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565250393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180257 + ... + 183365.

It is an arithmetic number, because the mean of its divisors is an integer number (42544800).

Almost surely, 2^565250399 is an apocalyptic number.

565250399 is a deficient number, since it is larger than the sum of its proper divisors (115466401).

565250399 is a wasteful number, since it uses less digits than its factorization.

565250399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4502.

The product of its (nonzero) digits is 364500, while the sum is 44.

The square root of 565250399 is about 23774.9952471078. The cubic root of 565250399 is about 826.8250500994.

The spelling of 565250399 in words is "five hundred sixty-five million, two hundred fifty thousand, three hundred ninety-nine".