565249020 has 96 divisors (see below), whose sum is σ = 1813142016. Its totient is φ = 128889600.

The previous prime is 565249019. The next prime is 565249033. The reversal of 565249020 is 20942565.

It is a super-2 number, since 2×565249020² = 639012909221920800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204850 + ... + 207590.

It is an arithmetic number, because the mean of its divisors is an integer number (18886896).

Almost surely, 2^565249020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 565249020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (906571008).

565249020 is an abundant number, since it is smaller than the sum of its proper divisors (1247892996).

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

565249020 is a wasteful number, since it uses less digits than its factorization.

565249020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3251 (or 3249 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 565249020 is about 23774.9662460328. The cubic root of 565249020 is about 826.8243777173.

The spelling of 565249020 in words is "five hundred sixty-five million, two hundred forty-nine thousand, twenty".