51143011 has 2 divisors, whose sum is σ = 51143012. Its totient is φ = 51143010.

The previous prime is 51142999. The next prime is 51143033. The reversal of 51143011 is 11034115.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51143011 - 2⁹ = 51142499 is a prime.

It is a super-2 number, since 2×51143011² = 5231215148292242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51143711) 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, 25571505 + 25571506.

It is an arithmetic number, because the mean of its divisors is an integer number (25571506).

Almost surely, 2^51143011 is an apocalyptic number.

51143011 is a deficient number, since it is larger than the sum of its proper divisors (1).

51143011 is an equidigital number, since it uses as much as digits as its factorization.

51143011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 51143011 is about 7151.4341918247. The cubic root of 51143011 is about 371.1892849654.

Adding to 51143011 its reverse (11034115), we get a palindrome (62177126).

The spelling of 51143011 in words is "fifty-one million, one hundred forty-three thousand, eleven".