56035691 has 2 divisors, whose sum is σ = 56035692. Its totient is φ = 56035690.

The previous prime is 56035673. The next prime is 56035697. The reversal of 56035691 is 19653065.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56035691 - 2¹⁴ = 56019307 is a prime.

It is a super-3 number, since 3×56035691³ (a number of 24 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (56035697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28017845 + 28017846.

It is an arithmetic number, because the mean of its divisors is an integer number (28017846).

Almost surely, 2^56035691 is an apocalyptic number.

56035691 is a deficient number, since it is larger than the sum of its proper divisors (1).

56035691 is an equidigital number, since it uses as much as digits as its factorization.

56035691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 56035691 is about 7485.6990989486. The cubic root of 56035691 is about 382.6674983727.

The spelling of 56035691 in words is "fifty-six million, thirty-five thousand, six hundred ninety-one".