55055500550455 has 16 divisors (see below), whose sum is σ = 66219796579104. Its totient is φ = 43942294955520.

The previous prime is 55055500550443. The next prime is 55055500550459. The reversal of 55055500550455 is 55405500555055.

It is not a de Polignac number, because 55055500550455 - 2³⁹ = 54505744736567 is a prime.

It is a super-2 number, since 2×55055500550455² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55055500550399 and 55055500550408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55055500550459) 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, 16007539 + ... + 19140331.

It is an arithmetic number, because the mean of its divisors is an integer number (4138737286194).

Almost surely, 2^{55055500550455} is an apocalyptic number.

55055500550455 is a deficient number, since it is larger than the sum of its proper divisors (11164296028649).

55055500550455 is a wasteful number, since it uses less digits than its factorization.

55055500550455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3140946.

The product of its (nonzero) digits is 7812500, while the sum is 49.

The spelling of 55055500550455 in words is "fifty-five trillion, fifty-five billion, five hundred million, five hundred fifty thousand, four hundred fifty-five".