51105556601 has 8 divisors (see below), whose sum is σ = 55795189824. Its totient is φ = 46423202320.

The previous prime is 51105556597. The next prime is 51105556609. The reversal of 51105556601 is 10665550115.

51105556601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51105556601 - 2² = 51105556597 is a prime.

It is a super-2 number, since 2×51105556601² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51105556609) 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, 1805045 + ... + 1833138.

It is an arithmetic number, because the mean of its divisors is an integer number (6974398728).

Almost surely, 2^51105556601 is an apocalyptic number.

It is an amenable number.

51105556601 is a deficient number, since it is larger than the sum of its proper divisors (4689633223).

51105556601 is a wasteful number, since it uses less digits than its factorization.

51105556601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3639471.

The product of its (nonzero) digits is 22500, while the sum is 35.

It can be divided in two parts, 51105 and 556601, that added together give a palindrome (607706).

The spelling of 51105556601 in words is "fifty-one billion, one hundred five million, five hundred fifty-six thousand, six hundred one".