51506126552 has 16 divisors (see below), whose sum is σ = 96602384160. Its totient is φ = 25745490784.

The previous prime is 51506126537. The next prime is 51506126563. The reversal of 51506126552 is 25562160515.

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 3 ways as a sum of consecutive naturals, for example, 917603 + ... + 972114.

It is an arithmetic number, because the mean of its divisors is an integer number (6037649010).

Almost surely, 2^51506126552 is an apocalyptic number.

It is an amenable number.

51506126552 is a deficient number, since it is larger than the sum of its proper divisors (45096257608).

51506126552 is a wasteful number, since it uses less digits than its factorization.

51506126552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893130 (or 1893126 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 38.

The spelling of 51506126552 in words is "fifty-one billion, five hundred six million, one hundred twenty-six thousand, five hundred fifty-two".