55550500051 has 16 divisors (see below), whose sum is σ = 60309711360. Its totient is φ = 50997016800.

The previous prime is 55550500043. The next prime is 55550500063. The reversal of 55550500051 is 15000505555.

It is a cyclic number.

It is not a de Polignac number, because 55550500051 - 2³ = 55550500043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55550499986 and 55550500022.

It is not an unprimeable number, because it can be changed into a prime (55550506051) 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, 217761 + ... + 398146.

It is an arithmetic number, because the mean of its divisors is an integer number (3769356960).

Almost surely, 2^55550500051 is an apocalyptic number.

55550500051 is a deficient number, since it is larger than the sum of its proper divisors (4759211309).

55550500051 is a wasteful number, since it uses less digits than its factorization.

55550500051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616074.

The product of its (nonzero) digits is 15625, while the sum is 31.

The spelling of 55550500051 in words is "fifty-five billion, five hundred fifty million, five hundred thousand, fifty-one".