55001055105500 has 96 divisors (see below), whose sum is σ = 137335887037440. Its totient is φ = 18850189569600.

The previous prime is 55001055105481. The next prime is 55001055105511. The reversal of 55001055105500 is 550155010055.

It is a super-2 number, since 2×55001055105500² (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 31 ways as a sum of consecutive naturals, for example, 5979857 + ... + 12073143.

It is an arithmetic number, because the mean of its divisors is an integer number (1430582156640).

Almost surely, 2^{55001055105500} is an apocalyptic number.

55001055105500 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 55001055105500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68667943518720).

55001055105500 is an abundant number, since it is smaller than the sum of its proper divisors (82334831931940).

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

55001055105500 is a wasteful number, since it uses less digits than its factorization.

55001055105500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6095892 (or 6095880 counting only the distinct ones).

The product of its (nonzero) digits is 15625, while the sum is 32.

The spelling of 55001055105500 in words is "fifty-five trillion, one billion, fifty-five million, one hundred five thousand, five hundred".