51031155041 has 2 divisors, whose sum is σ = 51031155042. Its totient is φ = 51031155040.

The previous prime is 51031155037. The next prime is 51031155103. The reversal of 51031155041 is 14055113015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50958547600 + 72607441 = 225740^2 + 8521^2 .

It is a cyclic number.

It is not a de Polignac number, because 51031155041 - 2² = 51031155037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51031155041.

It is not a weakly prime, because it can be changed into another prime (51031155001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25515577520 + 25515577521.

It is an arithmetic number, because the mean of its divisors is an integer number (25515577521).

Almost surely, 2^51031155041 is an apocalyptic number.

It is an amenable number.

51031155041 is a deficient number, since it is larger than the sum of its proper divisors (1).

51031155041 is an equidigital number, since it uses as much as digits as its factorization.

51031155041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1500, while the sum is 26.

Adding to 51031155041 its reverse (14055113015), we get a palindrome (65086268056).

The spelling of 51031155041 in words is "fifty-one billion, thirty-one million, one hundred fifty-five thousand, forty-one".