55250243808 has 96 divisors (see below), whose sum is σ = 147211126272. Its totient is φ = 18140505600.

The previous prime is 55250243801. The next prime is 55250243827. The reversal of 55250243808 is 80834205255.

It is a happy number.

55250243808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 55250243808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55250243801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8878138 + ... + 8884358.

It is an arithmetic number, because the mean of its divisors is an integer number (1533449232).

Almost surely, 2^55250243808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55250243808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73605563136).

55250243808 is an abundant number, since it is smaller than the sum of its proper divisors (91960882464).

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

55250243808 is a wasteful number, since it uses less digits than its factorization.

55250243808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7608 (or 7600 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 42.

The spelling of 55250243808 in words is "fifty-five billion, two hundred fifty million, two hundred forty-three thousand, eight hundred eight".