55257750750 has 64 divisors (see below), whose sum is σ = 138011874624. Its totient is φ = 14725942400.

The previous prime is 55257750689. The next prime is 55257750767. The reversal of 55257750750 is 5705775255.

It is a self number, because there is not a number n which added to its sum of digits gives 55257750750.

It is a congruent number.

It is an unprimeable number.

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, 1186912 + ... + 1232588.

It is an arithmetic number, because the mean of its divisors is an integer number (2156435541).

Almost surely, 2^55257750750 is an apocalyptic number.

55257750750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 55257750750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69005937312).

55257750750 is an abundant number, since it is smaller than the sum of its proper divisors (82754123874).

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

55257750750 is a wasteful number, since it uses less digits than its factorization.

55257750750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47310 (or 47300 counting only the distinct ones).

The product of its (nonzero) digits is 2143750, while the sum is 48.

The spelling of 55257750750 in words is "fifty-five billion, two hundred fifty-seven million, seven hundred fifty thousand, seven hundred fifty".