51505022214 has 96 divisors (see below), whose sum is σ = 115238803680. Its totient is φ = 16615065600.

The previous prime is 51505022209. The next prime is 51505022237. The reversal of 51505022214 is 41222050515.

51505022214 is a `hidden beast` number, since 5 + 150 + 502 + 2 + 2 + 1 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 63664642 + ... + 63665450.

It is an arithmetic number, because the mean of its divisors is an integer number (1200404205).

Almost surely, 2^51505022214 is an apocalyptic number.

51505022214 is an abundant number, since it is smaller than the sum of its proper divisors (63733781466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51505022214 is a wasteful number, since it uses less digits than its factorization.

51505022214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446 (or 1443 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

Adding to 51505022214 its reverse (41222050515), we get a palindrome (92727072729).

The spelling of 51505022214 in words is "fifty-one billion, five hundred five million, twenty-two thousand, two hundred fourteen".