51544251441 has 24 divisors (see below), whose sum is σ = 79363440000. Its totient is φ = 32142176352.

The previous prime is 51544251431. The next prime is 51544251457. The reversal of 51544251441 is 14415244515.

51544251441 is a `hidden beast` number, since 51 + 54 + 4 + 2 + 514 + 41 = 666.

It is not a de Polignac number, because 51544251441 - 2⁷ = 51544251313 is a prime.

It is a super-2 number, since 2×51544251441² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51544251396 and 51544251405.

It is not an unprimeable number, because it can be changed into a prime (51544251401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1894266 + ... + 1921283.

It is an arithmetic number, because the mean of its divisors is an integer number (3306810000).

Almost surely, 2^51544251441 is an apocalyptic number.

It is an amenable number.

51544251441 is a deficient number, since it is larger than the sum of its proper divisors (27819188559).

51544251441 is a wasteful number, since it uses less digits than its factorization.

51544251441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3815653 (or 3815650 counting only the distinct ones).

The product of its digits is 64000, while the sum is 36.

Adding to 51544251441 its reverse (14415244515), we get a palindrome (65959495956).

The spelling of 51544251441 in words is "fifty-one billion, five hundred forty-four million, two hundred fifty-one thousand, four hundred forty-one".