51342133 has 2 divisors, whose sum is σ = 51342134. Its totient is φ = 51342132.

The previous prime is 51342121. The next prime is 51342139. The reversal of 51342133 is 33124315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43007364 + 8334769 = 6558^2 + 2887^2 .

It is a cyclic number.

It is not a de Polignac number, because 51342133 - 2¹³ = 51333941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51342139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25671066 + 25671067.

It is an arithmetic number, because the mean of its divisors is an integer number (25671067).

Almost surely, 2^51342133 is an apocalyptic number.

It is an amenable number.

51342133 is a deficient number, since it is larger than the sum of its proper divisors (1).

51342133 is an equidigital number, since it uses as much as digits as its factorization.

51342133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 22.

The square root of 51342133 is about 7165.3424900698. The cubic root of 51342133 is about 371.6703949255.

Adding to 51342133 its reverse (33124315), we get a palindrome (84466448).

The spelling of 51342133 in words is "fifty-one million, three hundred forty-two thousand, one hundred thirty-three".