51106205603 has 8 divisors (see below), whose sum is σ = 51672113472. Its totient is φ = 50541094656.

The previous prime is 51106205599. The next prime is 51106205621. The reversal of 51106205603 is 30650260115.

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 51106205603 - 2² = 51106205599 is a prime.

It is a super-2 number, since 2×51106205603² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51106205653) 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, 69800 + ... + 327237.

It is an arithmetic number, because the mean of its divisors is an integer number (6459014184).

Almost surely, 2^51106205603 is an apocalyptic number.

51106205603 is a deficient number, since it is larger than the sum of its proper divisors (565907869).

51106205603 is a wasteful number, since it uses less digits than its factorization.

51106205603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398461.

The product of its (nonzero) digits is 5400, while the sum is 29.

Adding to 51106205603 its reverse (30650260115), we get a palindrome (81756465718).

The spelling of 51106205603 in words is "fifty-one billion, one hundred six million, two hundred five thousand, six hundred three".