55208720808 has 96 divisors (see below), whose sum is σ = 150132528000. Its totient is φ = 18328128000.

The previous prime is 55208720779. The next prime is 55208720837. The reversal of 55208720808 is 80802780255.

55208720808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55208720779) and next prime (55208720837).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26301343 + ... + 26303441.

It is an arithmetic number, because the mean of its divisors is an integer number (1563880500).

Almost surely, 2^55208720808 is an apocalyptic number.

It is an amenable number.

55208720808 is an abundant number, since it is smaller than the sum of its proper divisors (94923807192).

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

55208720808 is a wasteful number, since it uses less digits than its factorization.

55208720808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3423 (or 3416 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 45.

The spelling of 55208720808 in words is "fifty-five billion, two hundred eight million, seven hundred twenty thousand, eight hundred eight".