51110555601 has 16 divisors (see below), whose sum is σ = 77889640448. Its totient is φ = 29203448400.

The previous prime is 51110555599. The next prime is 51110555609. The reversal of 51110555601 is 10655501115.

It is not a de Polignac number, because 51110555601 - 2¹ = 51110555599 is a prime.

It is a super-2 number, since 2×51110555601² (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 (51110555609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149736 + ... + 353046.

It is an arithmetic number, because the mean of its divisors is an integer number (4868102528).

Almost surely, 2^51110555601 is an apocalyptic number.

It is an amenable number.

51110555601 is a deficient number, since it is larger than the sum of its proper divisors (26779084847).

51110555601 is a wasteful number, since it uses less digits than its factorization.

51110555601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215292.

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 51110555601 in words is "fifty-one billion, one hundred ten million, five hundred fifty-five thousand, six hundred one".