56065687 has 2 divisors, whose sum is σ = 56065688. Its totient is φ = 56065686.

The previous prime is 56065661. The next prime is 56065699. The reversal of 56065687 is 78656065.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56065687 is a prime.

It is a super-2 number, since 2×56065687² = 6286722517563938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56065627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28032843 + 28032844.

It is an arithmetic number, because the mean of its divisors is an integer number (28032844).

Almost surely, 2^56065687 is an apocalyptic number.

56065687 is a deficient number, since it is larger than the sum of its proper divisors (1).

56065687 is an equidigital number, since it uses as much as digits as its factorization.

56065687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 56065687 is about 7487.7023845770. The cubic root of 56065687 is about 382.7357670454.

The spelling of 56065687 in words is "fifty-six million, sixty-five thousand, six hundred eighty-seven".