56567663 has 2 divisors, whose sum is σ = 56567664. Its totient is φ = 56567662.

The previous prime is 56567639. The next prime is 56567671. The reversal of 56567663 is 36676565.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56567663 - 2¹² = 56563567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56567633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28283831 + 28283832.

It is an arithmetic number, because the mean of its divisors is an integer number (28283832).

Almost surely, 2^56567663 is an apocalyptic number.

56567663 is a deficient number, since it is larger than the sum of its proper divisors (1).

56567663 is an equidigital number, since it uses as much as digits as its factorization.

56567663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 44.

The square root of 56567663 is about 7521.1477182675. The cubic root of 56567663 is about 383.8746312926.

The spelling of 56567663 in words is "fifty-six million, five hundred sixty-seven thousand, six hundred sixty-three".