51550352223 has 16 divisors (see below), whose sum is σ = 69577595136. Its totient is φ = 33945192320.

The previous prime is 51550352221. The next prime is 51550352233. The reversal of 51550352223 is 32225305515.

51550352223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51550352223 - 2¹ = 51550352221 is a prime.

It is a super-2 number, since 2×51550352223² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51550352221) 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, 1215943 + ... + 1257623.

It is an arithmetic number, because the mean of its divisors is an integer number (4348599696).

Almost surely, 2^51550352223 is an apocalyptic number.

51550352223 is a deficient number, since it is larger than the sum of its proper divisors (18027242913).

51550352223 is a wasteful number, since it uses less digits than its factorization.

51550352223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46734.

The product of its (nonzero) digits is 45000, while the sum is 33.

Adding to 51550352223 its reverse (32225305515), we get a palindrome (83775657738).

The spelling of 51550352223 in words is "fifty-one billion, five hundred fifty million, three hundred fifty-two thousand, two hundred twenty-three".