55354790388 has 12 divisors (see below), whose sum is σ = 129161177600. Its totient is φ = 18451596792.

The previous prime is 55354790377. The next prime is 55354790389. The reversal of 55354790388 is 88309745355.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55354790389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2306449588 + ... + 2306449611.

Almost surely, 2^55354790388 is an apocalyptic number.

It is an amenable number.

55354790388 is an abundant number, since it is smaller than the sum of its proper divisors (73806387212).

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

55354790388 is a wasteful number, since it uses less digits than its factorization.

55354790388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4612899206 (or 4612899204 counting only the distinct ones).

The product of its (nonzero) digits is 18144000, while the sum is 57.

The spelling of 55354790388 in words is "fifty-five billion, three hundred fifty-four million, seven hundred ninety thousand, three hundred eighty-eight".