55000005545 has 4 divisors (see below), whose sum is σ = 66000006660. Its totient is φ = 44000004432.

The previous prime is 55000005539. The next prime is 55000005551. The reversal of 55000005545 is 54550000055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54550000055 = 5 ⋅10910000011.

It is an interprime number because it is at equal distance from previous prime (55000005539) and next prime (55000005551).

It can be written as a sum of positive squares in 2 ways, for example, as 37036232704 + 17963772841 = 192448^2 + 134029^2 .

It is a cyclic number.

It is not a de Polignac number, because 55000005545 - 2⁶ = 55000005481 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5500000550 + ... + 5500000559.

It is an arithmetic number, because the mean of its divisors is an integer number (16500001665).

Almost surely, 2^55000005545 is an apocalyptic number.

It is an amenable number.

55000005545 is a deficient number, since it is larger than the sum of its proper divisors (11000001115).

55000005545 is a wasteful number, since it uses less digits than its factorization.

55000005545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11000001114.

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

The spelling of 55000005545 in words is "fifty-five billion, five thousand, five hundred forty-five".