51106105607 has 4 divisors (see below), whose sum is σ = 51114563136. Its totient is φ = 51097648080.

The previous prime is 51106105577. The next prime is 51106105613. The reversal of 51106105607 is 70650160115.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51106105607 - 2¹² = 51106101511 is a prime.

It is a super-2 number, since 2×51106105607² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51106105637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4219694 + ... + 4231787.

It is an arithmetic number, because the mean of its divisors is an integer number (12778640784).

Almost surely, 2^51106105607 is an apocalyptic number.

51106105607 is a deficient number, since it is larger than the sum of its proper divisors (8457529).

51106105607 is an equidigital number, since it uses as much as digits as its factorization.

51106105607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8457528.

The product of its (nonzero) digits is 6300, while the sum is 32.

The spelling of 51106105607 in words is "fifty-one billion, one hundred six million, one hundred five thousand, six hundred seven".