55555205320 has 32 divisors (see below), whose sum is σ = 125119612800. Its totient is φ = 22200677568.

The previous prime is 55555205311. The next prime is 55555205333. The reversal of 55555205320 is 2350255555.

It is a happy number.

55555205320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 55555205320.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626814 + ... + 709933.

It is an arithmetic number, because the mean of its divisors is an integer number (3909987900).

Almost surely, 2^55555205320 is an apocalyptic number.

It is an amenable number.

55555205320 is an abundant number, since it is smaller than the sum of its proper divisors (69564407480).

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

55555205320 is a wasteful number, since it uses less digits than its factorization.

55555205320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337797 (or 1337793 counting only the distinct ones).

The product of its (nonzero) digits is 187500, while the sum is 37.

The spelling of 55555205320 in words is "fifty-five billion, five hundred fifty-five million, two hundred five thousand, three hundred twenty".