51105010006 has 4 divisors (see below), whose sum is σ = 76657515012. Its totient is φ = 25552505002.

The previous prime is 51105009997. The next prime is 51105010007. The reversal of 51105010006 is 60001050115.

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

It is a super-2 number, since 2×51105010006² (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 (51105010007) 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 as a sum of consecutive naturals, namely, 12776252500 + ... + 12776252503.

It is an arithmetic number, because the mean of its divisors is an integer number (19164378753).

Almost surely, 2^51105010006 is an apocalyptic number.

51105010006 is a deficient number, since it is larger than the sum of its proper divisors (25552505006).

51105010006 is a wasteful number, since it uses less digits than its factorization.

51105010006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25552505005.

The product of its (nonzero) digits is 150, while the sum is 19.

The spelling of 51105010006 in words is "fifty-one billion, one hundred five million, ten thousand, six".