51212633 has 2 divisors, whose sum is σ = 51212634. Its totient is φ = 51212632.

The previous prime is 51212627. The next prime is 51212659. The reversal of 51212633 is 33621215.

51212633 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., 35188624 + 16024009 = 5932^2 + 4003^2 .

It is a cyclic number.

It is not a de Polignac number, because 51212633 - 2⁸ = 51212377 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 51212599 and 51212608.

It is not a weakly prime, because it can be changed into another prime (51212663) 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, 25606316 + 25606317.

It is an arithmetic number, because the mean of its divisors is an integer number (25606317).

Almost surely, 2^51212633 is an apocalyptic number.

It is an amenable number.

51212633 is a deficient number, since it is larger than the sum of its proper divisors (1).

51212633 is an equidigital number, since it uses as much as digits as its factorization.

51212633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 23.

The square root of 51212633 is about 7156.3002312648. The cubic root of 51212633 is about 371.3576443816.

Adding to 51212633 its reverse (33621215), we get a palindrome (84833848).

The spelling of 51212633 in words is "fifty-one million, two hundred twelve thousand, six hundred thirty-three".