51404251441 has 16 divisors (see below), whose sum is σ = 53713972800. Its totient is φ = 49143786048.

The previous prime is 51404251439. The next prime is 51404251453. The reversal of 51404251441 is 14415240415.

It is a cyclic number.

It is not a de Polignac number, because 51404251441 - 2¹ = 51404251439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51404251421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6084166 + ... + 6092608.

It is an arithmetic number, because the mean of its divisors is an integer number (3357123300).

Almost surely, 2^51404251441 is an apocalyptic number.

It is an amenable number.

51404251441 is a deficient number, since it is larger than the sum of its proper divisors (2309721359).

51404251441 is a wasteful number, since it uses less digits than its factorization.

51404251441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11328.

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 51404251441 its reverse (14415240415), we get a palindrome (65819491856).

The spelling of 51404251441 in words is "fifty-one billion, four hundred four million, two hundred fifty-one thousand, four hundred forty-one".