55550500540500 has 288 divisors, whose sum is σ = 188363481965568. Its totient is φ = 12684428064000.

The previous prime is 55550500540487. The next prime is 55550500540531. The reversal of 55550500540500 is 504500505555.

It is a super-2 number, since 2×55550500540500² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 72457174 + ... + 73219826.

It is an arithmetic number, because the mean of its divisors is an integer number (654039867936).

Almost surely, 2^{55550500540500} is an apocalyptic number.

55550500540500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55550500540500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94181740982784).

55550500540500 is an abundant number, since it is smaller than the sum of its proper divisors (132812981425068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55550500540500 is a wasteful number, since it uses less digits than its factorization.

55550500540500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763680 (or 763661 counting only the distinct ones).

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

The spelling of 55550500540500 in words is "fifty-five trillion, five hundred fifty billion, five hundred million, five hundred forty thousand, five hundred".