565021730 has 64 divisors (see below), whose sum is σ = 1261854720. Its totient is φ = 177375744.

The previous prime is 565021729. The next prime is 565021747. The reversal of 565021730 is 37120565.

It is a junction number, because it is equal to n+sod(n) for n = 565021693 and 565021702.

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, 113126 + ... + 118014.

It is an arithmetic number, because the mean of its divisors is an integer number (19716480).

Almost surely, 2^565021730 is an apocalyptic number.

565021730 is an abundant number, since it is smaller than the sum of its proper divisors (696832990).

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

565021730 is a wasteful number, since it uses less digits than its factorization.

565021730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5043.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 565021730 is about 23770.1857375999. The cubic root of 565021730 is about 826.7135391896.

The spelling of 565021730 in words is "five hundred sixty-five million, twenty-one thousand, seven hundred thirty".