51624227 has 2 divisors, whose sum is σ = 51624228. Its totient is φ = 51624226.

The previous prime is 51624193. The next prime is 51624241. The reversal of 51624227 is 72242615.

It is a happy number.

51624227 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 a de Polignac number, because none of the positive numbers 2^k-51624227 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51624227.

It is not a weakly prime, because it can be changed into another prime (51620227) 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, 25812113 + 25812114.

It is an arithmetic number, because the mean of its divisors is an integer number (25812114).

Almost surely, 2^51624227 is an apocalyptic number.

51624227 is a deficient number, since it is larger than the sum of its proper divisors (1).

51624227 is an equidigital number, since it uses as much as digits as its factorization.

51624227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 29.

The square root of 51624227 is about 7185.0001391788. Note that the first 3 decimals coincide. The cubic root of 51624227 is about 372.3498534552.

The spelling of 51624227 in words is "fifty-one million, six hundred twenty-four thousand, two hundred twenty-seven".