51554660055 has 16 divisors (see below), whose sum is σ = 84043824480. Its totient is φ = 26977029248.

The previous prime is 51554660041. The next prime is 51554660099. The reversal of 51554660055 is 55006645515.

51554660055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51554660055 - 2⁴ = 51554660039 is a prime.

It is a super-2 number, since 2×51554660055² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51554659989 and 51554660016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32423520 + ... + 32425109.

It is an arithmetic number, because the mean of its divisors is an integer number (5252739030).

Almost surely, 2^51554660055 is an apocalyptic number.

51554660055 is a deficient number, since it is larger than the sum of its proper divisors (32489164425).

51554660055 is a wasteful number, since it uses less digits than its factorization.

51554660055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64848690.

The product of its (nonzero) digits is 450000, while the sum is 42.

The spelling of 51554660055 in words is "fifty-one billion, five hundred fifty-four million, six hundred sixty thousand, fifty-five".