51054061306505 has 8 divisors (see below), whose sum is σ = 63928563723072. Its totient is φ = 39067455608368.

The previous prime is 51054061306439. The next prime is 51054061306559. The reversal of 51054061306505 is 50560316045015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51054061306505 - 2¹⁶ = 51054061240969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221974179479 + ... + 221974179708.

It is an arithmetic number, because the mean of its divisors is an integer number (7991070465384).

Almost surely, 2^{51054061306505} is an apocalyptic number.

It is an amenable number.

51054061306505 is a deficient number, since it is larger than the sum of its proper divisors (12874502416567).

51054061306505 is a wasteful number, since it uses less digits than its factorization.

51054061306505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443948359215.

The product of its (nonzero) digits is 270000, while the sum is 41.

The spelling of 51054061306505 in words is "fifty-one trillion, fifty-four billion, sixty-one million, three hundred six thousand, five hundred five".