51095844241 has 4 divisors (see below), whose sum is σ = 55026293812. Its totient is φ = 47165394672.

The previous prime is 51095844203. The next prime is 51095844311. The reversal of 51095844241 is 14244859015.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4829555025 + 46266289216 = 69495^2 + 215096^2 .

It is a cyclic number.

It is not a de Polignac number, because 51095844241 - 2¹⁹ = 51095319953 is a prime.

It is a super-2 number, since 2×51095844241² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51095844941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1965224766 + ... + 1965224791.

It is an arithmetic number, because the mean of its divisors is an integer number (13756573453).

Almost surely, 2^51095844241 is an apocalyptic number.

It is an amenable number.

51095844241 is a deficient number, since it is larger than the sum of its proper divisors (3930449571).

51095844241 is a wasteful number, since it uses less digits than its factorization.

51095844241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3930449570.

The product of its (nonzero) digits is 230400, while the sum is 43.

The spelling of 51095844241 in words is "fifty-one billion, ninety-five million, eight hundred forty-four thousand, two hundred forty-one".