51135283 has 2 divisors, whose sum is σ = 51135284. Its totient is φ = 51135282.

The previous prime is 51135281. The next prime is 51135307. The reversal of 51135283 is 38253115.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51135283 - 2¹ = 51135281 is a prime.

It is a super-2 number, since 2×51135283² = 5229634334980178, which contains 22 as substring.

Together with 51135281, it forms a pair of twin primes.

It is equal to p_3065086 and since 51135283 and 3065086 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (51135281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25567641 + 25567642.

It is an arithmetic number, because the mean of its divisors is an integer number (25567642).

Almost surely, 2^51135283 is an apocalyptic number.

51135283 is a deficient number, since it is larger than the sum of its proper divisors (1).

51135283 is an equidigital number, since it uses as much as digits as its factorization.

51135283 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 28.

The square root of 51135283 is about 7150.8938602108. The cubic root of 51135283 is about 371.1705877525.

Adding to 51135283 its reverse (38253115), we get a palindrome (89388398).

The spelling of 51135283 in words is "fifty-one million, one hundred thirty-five thousand, two hundred eighty-three".