51544221105 has 32 divisors (see below), whose sum is σ = 89938920960. Its totient is φ = 25054398720.

The previous prime is 51544221101. The next prime is 51544221161. The reversal of 51544221105 is 50112244515.

It is not a de Polignac number, because 51544221105 - 2² = 51544221101 is a prime.

It is a super-2 number, since 2×51544221105² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51544221101) 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 31 ways as a sum of consecutive naturals, for example, 1657566 + ... + 1688375.

It is an arithmetic number, because the mean of its divisors is an integer number (2810591280).

Almost surely, 2^51544221105 is an apocalyptic number.

It is an amenable number.

51544221105 is a deficient number, since it is larger than the sum of its proper divisors (38394699855).

51544221105 is a wasteful number, since it uses less digits than its factorization.

51544221105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3346041.

The product of its (nonzero) digits is 8000, while the sum is 30.

The spelling of 51544221105 in words is "fifty-one billion, five hundred forty-four million, two hundred twenty-one thousand, one hundred five".