56816651 has 2 divisors, whose sum is σ = 56816652. Its totient is φ = 56816650.

The previous prime is 56816629. The next prime is 56816653. The reversal of 56816651 is 15661865.

56816651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56816651 - 2¹⁴ = 56800267 is a prime.

Together with 56816653, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56816653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28408325 + 28408326.

It is an arithmetic number, because the mean of its divisors is an integer number (28408326).

Almost surely, 2^56816651 is an apocalyptic number.

56816651 is a deficient number, since it is larger than the sum of its proper divisors (1).

56816651 is an equidigital number, since it uses as much as digits as its factorization.

56816651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 38.

The square root of 56816651 is about 7537.6820707695. The cubic root of 56816651 is about 384.4370273002.

The spelling of 56816651 in words is "fifty-six million, eight hundred sixteen thousand, six hundred fifty-one".