51105510010 has 32 divisors (see below), whose sum is σ = 94009132800. Its totient is φ = 19998239040.

The previous prime is 51105509999. The next prime is 51105510011. The reversal of 51105510010 is 1001550115.

It is a happy number.

It is a super-2 number, since 2×51105510010² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51105510010.

It is not an unprimeable number, because it can be changed into a prime (51105510011) 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 15 ways as a sum of consecutive naturals, for example, 210636 + ... + 382855.

It is an arithmetic number, because the mean of its divisors is an integer number (2937785400).

Almost surely, 2^51105510010 is an apocalyptic number.

51105510010 is a deficient number, since it is larger than the sum of its proper divisors (42903622790).

51105510010 is a wasteful number, since it uses less digits than its factorization.

51105510010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593686.

The product of its (nonzero) digits is 125, while the sum is 19.

The spelling of 51105510010 in words is "fifty-one billion, one hundred five million, five hundred ten thousand, ten".