51612550122445 has 16 divisors (see below), whose sum is σ = 66700112048640. Its totient is φ = 38113416592704.

The previous prime is 51612550122403. The next prime is 51612550122451. The reversal of 51612550122445 is 54422105521615.

It is a cyclic number.

It is not a de Polignac number, because 51612550122445 - 2³¹ = 51610402638797 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 536196 + ... + 10174114.

It is an arithmetic number, because the mean of its divisors is an integer number (4168757003040).

Almost surely, 2^{51612550122445} is an apocalyptic number.

It is an amenable number.

51612550122445 is a deficient number, since it is larger than the sum of its proper divisors (15087561926195).

51612550122445 is a wasteful number, since it uses less digits than its factorization.

51612550122445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9720324.

The product of its (nonzero) digits is 480000, while the sum is 43.

The spelling of 51612550122445 in words is "fifty-one trillion, six hundred twelve billion, five hundred fifty million, one hundred twenty-two thousand, four hundred forty-five".