5681567 has 2 divisors, whose sum is σ = 5681568. Its totient is φ = 5681566.

The previous prime is 5681561. The next prime is 5681579. The reversal of 5681567 is 7651865.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5681567 - 2⁶ = 5681503 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5681567.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5681561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2840783 + 2840784.

It is an arithmetic number, because the mean of its divisors is an integer number (2840784).

Almost surely, 2^5681567 is an apocalyptic number.

5681567 is a deficient number, since it is larger than the sum of its proper divisors (1).

5681567 is an equidigital number, since it uses as much as digits as its factorization.

5681567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 38.

The square root of 5681567 is about 2383.6037841890. The cubic root of 5681567 is about 178.4388343237.

The spelling of 5681567 in words is "five million, six hundred eighty-one thousand, five hundred sixty-seven".