51441120521 has 8 divisors (see below), whose sum is σ = 58791421440. Its totient is φ = 44091211968.

The previous prime is 51441120503. The next prime is 51441120529. The reversal of 51441120521 is 12502114415.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51441120521 is a prime.

It is a super-2 number, since 2×51441120521² (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 (51441120529) 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 in 7 ways as a sum of consecutive naturals, for example, 280040 + ... + 425798.

It is an arithmetic number, because the mean of its divisors is an integer number (7348927680).

Almost surely, 2^51441120521 is an apocalyptic number.

It is an amenable number.

51441120521 is a deficient number, since it is larger than the sum of its proper divisors (7350300919).

51441120521 is a wasteful number, since it uses less digits than its factorization.

51441120521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196183.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 51441120521 its reverse (12502114415), we get a palindrome (63943234936).

The spelling of 51441120521 in words is "fifty-one billion, four hundred forty-one million, one hundred twenty thousand, five hundred twenty-one".