51061061005 has 16 divisors (see below), whose sum is σ = 62722059840. Its totient is φ = 39883713408.

The previous prime is 51061061003. The next prime is 51061061033. The reversal of 51061061005 is 50016016015.

It is a cyclic number.

It is not a de Polignac number, because 51061061005 - 2¹ = 51061061003 is a prime.

It is a super-2 number, since 2×51061061005² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51061061003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 539526 + ... + 627064.

It is an arithmetic number, because the mean of its divisors is an integer number (3920128740).

Almost surely, 2^51061061005 is an apocalyptic number.

It is an amenable number.

51061061005 is a deficient number, since it is larger than the sum of its proper divisors (11660998835).

51061061005 is a wasteful number, since it uses less digits than its factorization.

51061061005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90300.

The product of its (nonzero) digits is 900, while the sum is 25.

The spelling of 51061061005 in words is "fifty-one billion, sixty-one million, sixty-one thousand, five".