565505250 has 64 divisors (see below), whose sum is σ = 1417253760. Its totient is φ = 150187200.

The previous prime is 565505243. The next prime is 565505257. The reversal of 565505250 is 52505565.

565505250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (565505243) and next prime (565505257).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (565505257) 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, 200349 + ... + 203151.

It is an arithmetic number, because the mean of its divisors is an integer number (22144590).

Almost surely, 2^565505250 is an apocalyptic number.

565505250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 565505250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (708626880).

565505250 is an abundant number, since it is smaller than the sum of its proper divisors (851748510).

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

565505250 is a wasteful number, since it uses less digits than its factorization.

565505250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3092 (or 3082 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 33.

The square root of 565505250 is about 23780.3542866796. The cubic root of 565505250 is about 826.9492932849.

The spelling of 565505250 in words is "five hundred sixty-five million, five hundred five thousand, two hundred fifty".