51132511 has 2 divisors, whose sum is σ = 51132512. Its totient is φ = 51132510.

The previous prime is 51132493. The next prime is 51132533. The reversal of 51132511 is 11523115.

51132511 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 is a cyclic number.

It is not a de Polignac number, because 51132511 - 2⁷ = 51132383 is a prime.

It is a super-2 number, since 2×51132511² = 5229067362330242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51132541) 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, 25566255 + 25566256.

It is an arithmetic number, because the mean of its divisors is an integer number (25566256).

Almost surely, 2^51132511 is an apocalyptic number.

51132511 is a deficient number, since it is larger than the sum of its proper divisors (1).

51132511 is an equidigital number, since it uses as much as digits as its factorization.

51132511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 150, while the sum is 19.

The square root of 51132511 is about 7150.7000356608. The cubic root of 51132511 is about 371.1638806845.

Adding to 51132511 its reverse (11523115), we get a palindrome (62655626).

The spelling of 51132511 in words is "fifty-one million, one hundred thirty-two thousand, five hundred eleven".