562812381 has 10 divisors (see below), whose sum is σ = 840744542. Its totient is φ = 375208200.

The previous prime is 562812379. The next prime is 562812389. The reversal of 562812381 is 183218265.

It is a happy number.

562812381 is a `hidden beast` number, since 5 + 628 + 1 + 23 + 8 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 486599481 + 76212900 = 22059^2 + 8730^2 .

It is not a de Polignac number, because 562812381 - 2¹ = 562812379 is a prime.

It is a super-2 number, since 2×562812381² = 633515552413778322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (562812389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3474070 + ... + 3474231.

Almost surely, 2^562812381 is an apocalyptic number.

It is an amenable number.

562812381 is a deficient number, since it is larger than the sum of its proper divisors (277932161).

562812381 is an equidigital number, since it uses as much as digits as its factorization.

562812381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6948313 (or 6948304 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 562812381 is about 23723.6671069209. The cubic root of 562812381 is about 825.6345927357.

The spelling of 562812381 in words is "five hundred sixty-two million, eight hundred twelve thousand, three hundred eighty-one".