51061055510561 has 8 divisors (see below), whose sum is σ = 51090775281504. Its totient is φ = 51031344313600.

The previous prime is 51061055510477. The next prime is 51061055510611. The reversal of 51061055510561 is 16501555016015.

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 51061055510561 - 2¹⁴ = 51061055494177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51061055510261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9789986 + ... + 14070036.

It is an arithmetic number, because the mean of its divisors is an integer number (6386346910188).

Almost surely, 2^{51061055510561} is an apocalyptic number.

It is an amenable number.

51061055510561 is a deficient number, since it is larger than the sum of its proper divisors (29719770943).

51061055510561 is a wasteful number, since it uses less digits than its factorization.

51061055510561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4286991.

The product of its (nonzero) digits is 112500, while the sum is 41.

The spelling of 51061055510561 in words is "fifty-one trillion, sixty-one billion, fifty-five million, five hundred ten thousand, five hundred sixty-one".