562561 has 4 divisors (see below), whose sum is σ = 576324. Its totient is φ = 548800.

The previous prime is 562537. The next prime is 562577. The reversal of 562561 is 165265.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 165265 = 5 ⋅33053.

It can be written as a sum of positive squares in 2 ways, for example, as 65536 + 497025 = 256^2 + 705^2 .

It is a cyclic number.

It is not a de Polignac number, because 562561 - 2¹⁹ = 38273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (562501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6820 + ... + 6901.

It is an arithmetic number, because the mean of its divisors is an integer number (144081).

2⁵⁶²⁵⁶¹ is an apocalyptic number.

It is an amenable number.

562561 is a deficient number, since it is larger than the sum of its proper divisors (13763).

562561 is a wasteful number, since it uses less digits than its factorization.

562561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13762.

The product of its digits is 1800, while the sum is 25.

The square root of 562561 is about 750.0406655642. The cubic root of 562561 is about 82.5511650784.

The spelling of 562561 in words is "five hundred sixty-two thousand, five hundred sixty-one".