51550145055 has 96 divisors (see below), whose sum is σ = 93654392832. Its totient is φ = 26199590400.

The previous prime is 51550145033. The next prime is 51550145113. The reversal of 51550145055 is 55054105515.

51550145055 is a `hidden beast` number, since 5 + 1 + 550 + 1 + 4 + 50 + 55 = 666.

It is not a de Polignac number, because 51550145055 - 2⁶ = 51550144991 is a prime.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 49902819 + ... + 49903851.

It is an arithmetic number, because the mean of its divisors is an integer number (975566592).

Almost surely, 2^51550145055 is an apocalyptic number.

51550145055 is a deficient number, since it is larger than the sum of its proper divisors (42104247777).

51550145055 is a wasteful number, since it uses less digits than its factorization.

51550145055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589 (or 1586 counting only the distinct ones).

The product of its (nonzero) digits is 62500, while the sum is 36.

The spelling of 51550145055 in words is "fifty-one billion, five hundred fifty million, one hundred forty-five thousand, fifty-five".