55500550545 has 64 divisors (see below), whose sum is σ = 102509826048. Its totient is φ = 25376736000.

The previous prime is 55500550537. The next prime is 55500550577. The reversal of 55500550545 is 54505500555.

It is not a de Polignac number, because 55500550545 - 2³ = 55500550537 is a prime.

It is a super-2 number, since 2×55500550545² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 166455 + ... + 372435.

It is an arithmetic number, because the mean of its divisors is an integer number (1601716032).

Almost surely, 2^55500550545 is an apocalyptic number.

55500550545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55500550545 is a deficient number, since it is larger than the sum of its proper divisors (47009275503).

55500550545 is a wasteful number, since it uses less digits than its factorization.

55500550545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206094.

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

It can be divided in two parts, 555005 and 50545, that added together give a triangular number (605550 = T₁₁₀₀).

The spelling of 55500550545 in words is "fifty-five billion, five hundred million, five hundred fifty thousand, five hundred forty-five".