51055422864461 has 16 divisors (see below), whose sum is σ = 54627803174784. Its totient is φ = 47610786161664.

The previous prime is 51055422864359. The next prime is 51055422864497. The reversal of 51055422864461 is 16446822455015.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51055422864461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51055422854461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170630720 + ... + 170929673.

It is an arithmetic number, because the mean of its divisors is an integer number (3414237698424).

Almost surely, 2^{51055422864461} is an apocalyptic number.

It is an amenable number.

51055422864461 is a deficient number, since it is larger than the sum of its proper divisors (3572380310323).

51055422864461 is a wasteful number, since it uses less digits than its factorization.

51055422864461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341560580.

The product of its (nonzero) digits is 9216000, while the sum is 53.

The spelling of 51055422864461 in words is "fifty-one trillion, fifty-five billion, four hundred twenty-two million, eight hundred sixty-four thousand, four hundred sixty-one".