51224101 has 2 divisors, whose sum is σ = 51224102. Its totient is φ = 51224100.

The previous prime is 51224093. The next prime is 51224161. The reversal of 51224101 is 10142215.

51224101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32092225 + 19131876 = 5665^2 + 4374^2 .

It is a cyclic number.

It is not a de Polignac number, because 51224101 - 2³ = 51224093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51224161) 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, 25612050 + 25612051.

It is an arithmetic number, because the mean of its divisors is an integer number (25612051).

Almost surely, 2^51224101 is an apocalyptic number.

It is an amenable number.

51224101 is a deficient number, since it is larger than the sum of its proper divisors (1).

51224101 is an equidigital number, since it uses as much as digits as its factorization.

51224101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 51224101 is about 7157.1014384316. The cubic root of 51224101 is about 371.3853615767.

Adding to 51224101 its reverse (10142215), we get a palindrome (61366316).

The spelling of 51224101 in words is "fifty-one million, two hundred twenty-four thousand, one hundred one".