51322445055 has 24 divisors (see below), whose sum is σ = 101667320352. Its totient is φ = 23461689024.

The previous prime is 51322445051. The next prime is 51322445071. The reversal of 51322445055 is 55054422315.

51322445055 is a `hidden beast` number, since 5 + 132 + 24 + 450 + 55 = 666.

It is not a de Polignac number, because 51322445055 - 2² = 51322445051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51322445051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81463884 + ... + 81464513.

It is an arithmetic number, because the mean of its divisors is an integer number (4236138348).

Almost surely, 2^51322445055 is an apocalyptic number.

51322445055 is a deficient number, since it is larger than the sum of its proper divisors (50344875297).

51322445055 is a wasteful number, since it uses less digits than its factorization.

51322445055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162928415 (or 162928412 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 51322445055 in words is "fifty-one billion, three hundred twenty-two million, four hundred forty-five thousand, fifty-five".