51144513331 has 2 divisors, whose sum is σ = 51144513332. Its totient is φ = 51144513330.

The previous prime is 51144513289. The next prime is 51144513353. The reversal of 51144513331 is 13331544115.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51144513331 - 2²⁹ = 50607642419 is a prime.

It is a super-2 number, since 2×51144513331² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51144513293 and 51144513302.

It is not a weakly prime, because it can be changed into another prime (51144513391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25572256665 + 25572256666.

It is an arithmetic number, because the mean of its divisors is an integer number (25572256666).

Almost surely, 2^51144513331 is an apocalyptic number.

51144513331 is a deficient number, since it is larger than the sum of its proper divisors (1).

51144513331 is an equidigital number, since it uses as much as digits as its factorization.

51144513331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 31.

The spelling of 51144513331 in words is "fifty-one billion, one hundred forty-four million, five hundred thirteen thousand, three hundred thirty-one".