55055550045 has 16 divisors (see below), whose sum is σ = 88110262080. Its totient is φ = 29355832704.

The previous prime is 55055550031. The next prime is 55055550049. The reversal of 55055550045 is 54005555055.

It is not a de Polignac number, because 55055550045 - 2⁹ = 55055549533 is a prime.

It is a super-2 number, since 2×55055550045² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55055549985 and 55055550012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55055550049) 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, 381304 + ... + 505473.

It is an arithmetic number, because the mean of its divisors is an integer number (5506891380).

Almost surely, 2^55055550045 is an apocalyptic number.

It is an amenable number.

55055550045 is a deficient number, since it is larger than the sum of its proper divisors (33054712035).

55055550045 is a wasteful number, since it uses less digits than its factorization.

55055550045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890924.

The product of its (nonzero) digits is 312500, while the sum is 39.

The spelling of 55055550045 in words is "fifty-five billion, fifty-five million, five hundred fifty thousand, forty-five".