51000060609 has 6 divisors (see below), whose sum is σ = 73666754226. Its totient is φ = 34000040400.

The previous prime is 51000060583. The next prime is 51000060611. The reversal of 51000060609 is 90606000015.

51000060609 is a `hidden beast` number, since 51 + 0 + 0 + 0 + 0 + 6 + 0 + 609 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26170179984 + 24829880625 = 161772^2 + 157575^2 .

It is not a de Polignac number, because 51000060609 - 2²⁰ = 50999012033 is a prime.

It is a super-3 number, since 3×51000060609³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (51000060619) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2833336692 + ... + 2833336709.

It is an arithmetic number, because the mean of its divisors is an integer number (12277792371).

Almost surely, 2^51000060609 is an apocalyptic number.

It is an amenable number.

51000060609 is a deficient number, since it is larger than the sum of its proper divisors (22666693617).

51000060609 is a wasteful number, since it uses less digits than its factorization.

51000060609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5666673407 (or 5666673404 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The spelling of 51000060609 in words is "fifty-one billion, sixty thousand, six hundred nine".