565250625 has 45 divisors (see below), whose sum is σ = 1023493471. Its totient is φ = 300516000.

The previous prime is 565250617. The next prime is 565250639. The reversal of 565250625 is 526052565.

The square root of 565250625 is 23775.

It is a perfect power (a square), and thus also a powerful number.

565250625 is a `hidden beast` number, since 5 + 6 + 5 + 25 + 0 + 625 = 666.

It can be written as a sum of positive squares in 7 ways, for example, as 564110001 + 1140624 = 23751^2 + 1068^2 .

It is a tau number, because it is divible by the number of its divisors (45).

It is not a de Polignac number, because 565250625 - 2³ = 565250617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 565250625.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1782967 + ... + 1783283.

Almost surely, 2^565250625 is an apocalyptic number.

565250625 is the 23775-th square number.

565250625 is the 11888-th centered octagonal number.

It is an amenable number.

565250625 is a deficient number, since it is larger than the sum of its proper divisors (458242846).

565250625 is an frugal number, since it uses more digits than its factorization.

565250625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The cubic root of 565250625 is about 826.8251602939.

Multiplying 565250625 by its sum of digits (36), we get a square (20349022500 = 142650²).

Multiplying 565250625 by its product of nonzero digits (90000), we get a square (50872556250000 = 7132500²).

The spelling of 565250625 in words is "five hundred sixty-five million, two hundred fifty thousand, six hundred twenty-five".