51005006061005 has 16 divisors (see below), whose sum is σ = 62508737491200. Its totient is φ = 39935531224512.

The previous prime is 51005006060999. The next prime is 51005006061013. The reversal of 51005006061005 is 50016060050015.

It is a cyclic number.

It is not a de Polignac number, because 51005006061005 - 2¹² = 51005006056909 is a prime.

It is a super-2 number, since 2×51005006061005² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33158207 + ... + 34662323.

It is an arithmetic number, because the mean of its divisors is an integer number (3906796093200).

Almost surely, 2^{51005006061005} is an apocalyptic number.

It is an amenable number.

51005006061005 is a deficient number, since it is larger than the sum of its proper divisors (11503731430195).

51005006061005 is a wasteful number, since it uses less digits than its factorization.

51005006061005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648468.

The product of its (nonzero) digits is 4500, while the sum is 29.

It can be divided in two parts, 5100500 and 6061005, that multiplied together give a square (30914156002500 = 5560050²).

The spelling of 51005006061005 in words is "fifty-one trillion, five billion, six million, sixty-one thousand, five".