51060555505 has 8 divisors (see below), whose sum is σ = 61390275624. Its totient is φ = 40770038400.

The previous prime is 51060555503. The next prime is 51060555517. The reversal of 51060555505 is 50555506015.

It can be written as a sum of positive squares in 4 ways, for example, as 12425115024 + 38635440481 = 111468^2 + 196559^2 .

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

It is not a de Polignac number, because 51060555505 - 2¹ = 51060555503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51060555503) 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, 9797886 + ... + 9803095.

It is an arithmetic number, because the mean of its divisors is an integer number (7673784453).

Almost surely, 2^51060555505 is an apocalyptic number.

It is an amenable number.

51060555505 is a deficient number, since it is larger than the sum of its proper divisors (10329720119).

51060555505 is a wasteful number, since it uses less digits than its factorization.

51060555505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19601507.

The product of its (nonzero) digits is 93750, while the sum is 37.

The spelling of 51060555505 in words is "fifty-one billion, sixty million, five hundred fifty-five thousand, five hundred five".