55505007750 has 32 divisors (see below), whose sum is σ = 138540501216. Its totient is φ = 14801335200.

The previous prime is 55505007673. The next prime is 55505007773. The reversal of 55505007750 is 5770050555.

55505007750 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 55505007699 and 55505007708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37002589 + ... + 37004088.

It is an arithmetic number, because the mean of its divisors is an integer number (4329390663).

Almost surely, 2^55505007750 is an apocalyptic number.

55505007750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55505007750 is an abundant number, since it is smaller than the sum of its proper divisors (83035493466).

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

55505007750 is a wasteful number, since it uses less digits than its factorization.

55505007750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74006697 (or 74006687 counting only the distinct ones).

The product of its (nonzero) digits is 153125, while the sum is 39.

The spelling of 55505007750 in words is "fifty-five billion, five hundred five million, seven thousand, seven hundred fifty".