545500055 has 4 divisors (see below), whose sum is σ = 654600072. Its totient is φ = 436400040.

The previous prime is 545499973. The next prime is 545500061. The reversal of 545500055 is 550005545.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 550005545 = 5 ⋅110001109.

It is a de Polignac number, because none of the positive numbers 2^k-545500055 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54550001 + ... + 54550010.

It is an arithmetic number, because the mean of its divisors is an integer number (163650018).

Almost surely, 2^545500055 is an apocalyptic number.

545500055 is a deficient number, since it is larger than the sum of its proper divisors (109100017).

545500055 is a wasteful number, since it uses less digits than its factorization.

545500055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109100016.

The product of its (nonzero) digits is 12500, while the sum is 29.

The square root of 545500055 is about 23355.9426056839. The cubic root of 545500055 is about 817.0806635274.

The spelling of 545500055 in words is "five hundred forty-five million, five hundred thousand, fifty-five".