51634133 has 2 divisors, whose sum is σ = 51634134. Its totient is φ = 51634132.

The previous prime is 51634087. The next prime is 51634139. The reversal of 51634133 is 33143615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51294244 + 339889 = 7162^2 + 583^2 .

It is a cyclic number.

It is not a de Polignac number, because 51634133 - 2¹⁴ = 51617749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51634139) 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, 25817066 + 25817067.

It is an arithmetic number, because the mean of its divisors is an integer number (25817067).

Almost surely, 2^51634133 is an apocalyptic number.

It is an amenable number.

51634133 is a deficient number, since it is larger than the sum of its proper divisors (1).

51634133 is an equidigital number, since it uses as much as digits as its factorization.

51634133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 26.

The square root of 51634133 is about 7185.6894589176. The cubic root of 51634133 is about 372.3736682541.

Adding to 51634133 its reverse (33143615), we get a palindrome (84777748).

The spelling of 51634133 in words is "fifty-one million, six hundred thirty-four thousand, one hundred thirty-three".