51522444356 has 12 divisors (see below), whose sum is σ = 90170300220. Its totient is φ = 25759501440.

The previous prime is 51522444331. The next prime is 51522444367. The reversal of 51522444356 is 65344422515.

It can be written as a sum of positive squares in 2 ways, for example, as 33463384900 + 18059059456 = 182930^2 + 134384^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361601 + ... + 483528.

It is an arithmetic number, because the mean of its divisors is an integer number (7514191685).

Almost surely, 2^51522444356 is an apocalyptic number.

It is an amenable number.

51522444356 is a deficient number, since it is larger than the sum of its proper divisors (38647855864).

51522444356 is a wasteful number, since it uses less digits than its factorization.

51522444356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860374 (or 860372 counting only the distinct ones).

The product of its digits is 576000, while the sum is 41.

The spelling of 51522444356 in words is "fifty-one billion, five hundred twenty-two million, four hundred forty-four thousand, three hundred fifty-six".