56540611 has 2 divisors, whose sum is σ = 56540612. Its totient is φ = 56540610.

The previous prime is 56540609. The next prime is 56540629. The reversal of 56540611 is 11604565.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56540611 - 2¹ = 56540609 is a prime.

Together with 56540609, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 56540611.

It is not a weakly prime, because it can be changed into another prime (56540651) 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 as a sum of consecutive naturals, namely, 28270305 + 28270306.

It is an arithmetic number, because the mean of its divisors is an integer number (28270306).

Almost surely, 2^56540611 is an apocalyptic number.

56540611 is a deficient number, since it is larger than the sum of its proper divisors (1).

56540611 is an equidigital number, since it uses as much as digits as its factorization.

56540611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 56540611 is about 7519.3491074693. The cubic root of 56540611 is about 383.8134288800.

The spelling of 56540611 in words is "fifty-six million, five hundred forty thousand, six hundred eleven".