562116681 has 27 divisors (see below), whose sum is σ = 945346311. Its totient is φ = 320925024.

The previous prime is 562116641. The next prime is 562116697. The reversal of 562116681 is 186611265.

The square root of 562116681 is 23709.

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

562116681 is a `hidden beast` number, since 562 + 1 + 16 + 6 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 47734281 + 514382400 = 6909^2 + 22680^2 .

It is not a de Polignac number, because 562116681 - 2¹³ = 562108489 is a prime.

It is a super-2 number, since 2×562116681² = 631950326116911522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (562116631) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 497325 + ... + 498453.

Almost surely, 2^562116681 is an apocalyptic number.

562116681 is the 23709-th square number.

562116681 is the 11855-th centered octagonal number.

It is an amenable number.

562116681 is a deficient number, since it is larger than the sum of its proper divisors (383229630).

562116681 is an equidigital number, since it uses as much as digits as its factorization.

562116681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278 (or 1139 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The cubic root of 562116681 is about 825.2942597697.

Multiplying 562116681 by its sum of digits (36), we get a square (20236200516 = 142254²).

The spelling of 562116681 in words is "five hundred sixty-two million, one hundred sixteen thousand, six hundred eighty-one".