565623028 has 24 divisors (see below), whose sum is σ = 1002138984. Its totient is φ = 279312000.

The previous prime is 565623013. The next prime is 565623041. The reversal of 565623028 is 820326565.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 282979684 + 282643344 = 16822^2 + 16812^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184726 + ... + 187762.

It is an arithmetic number, because the mean of its divisors is an integer number (41755791).

Almost surely, 2^565623028 is an apocalyptic number.

It is an amenable number.

565623028 is a deficient number, since it is larger than the sum of its proper divisors (436515956).

565623028 is a wasteful number, since it uses less digits than its factorization.

565623028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3603 (or 3601 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 565623028 is about 23782.8305296069. The cubic root of 565623028 is about 827.0066989842.

The spelling of 565623028 in words is "five hundred sixty-five million, six hundred twenty-three thousand, twenty-eight".