55550500540509 has 32 divisors (see below), whose sum is σ = 82986210033664. Its totient is φ = 32821694216640.

The previous prime is 55550500540487. The next prime is 55550500540531. The reversal of 55550500540509 is 90504500505555.

55550500540509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55550500540487) and next prime (55550500540531).

It is not a de Polignac number, because 55550500540509 - 2⁴¹ = 53351477284957 is a prime.

It is a super-2 number, since 2×55550500540509² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55550500540009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180742039 + ... + 181049124.

It is an arithmetic number, because the mean of its divisors is an integer number (2593319063552).

Almost surely, 2^{55550500540509} is an apocalyptic number.

It is an amenable number.

55550500540509 is a deficient number, since it is larger than the sum of its proper divisors (27435709493155).

55550500540509 is a wasteful number, since it uses less digits than its factorization.

55550500540509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361791337.

The product of its (nonzero) digits is 2812500, while the sum is 48.

The spelling of 55550500540509 in words is "fifty-five trillion, five hundred fifty billion, five hundred million, five hundred forty thousand, five hundred nine".