55505550045 has 32 divisors (see below), whose sum is σ = 96932634624. Its totient is φ = 26897832000.

The previous prime is 55505550043. The next prime is 55505550047. The reversal of 55505550045 is 54005550555.

It is an interprime number because it is at equal distance from previous prime (55505550043) and next prime (55505550047).

It is not a de Polignac number, because 55505550045 - 2¹ = 55505550043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55505549985 and 55505550012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55505550043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 235704 + ... + 408126.

It is an arithmetic number, because the mean of its divisors is an integer number (3029144832).

Almost surely, 2^55505550045 is an apocalyptic number.

55505550045 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55505550045 is a deficient number, since it is larger than the sum of its proper divisors (41427084579).

55505550045 is a wasteful number, since it uses less digits than its factorization.

55505550045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174393.

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

It can be divided in two parts, 55505 and 550045, that added together give a triangular number (605550 = T₁₁₀₀).

The spelling of 55505550045 in words is "fifty-five billion, five hundred five million, five hundred fifty thousand, forty-five".