55394090000 has 50 divisors (see below), whose sum is σ = 134114655510. Its totient is φ = 22157632000.

The previous prime is 55394089967. The next prime is 55394090039. The reversal of 55394090000 is 9049355.

It can be written as a sum of positive squares in 5 ways, for example, as 32388481024 + 23005608976 = 179968^2 + 151676^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 2759705 + ... + 2779704.

Almost surely, 2^55394090000 is an apocalyptic number.

55394090000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55394090000 is an abundant number, since it is smaller than the sum of its proper divisors (78720565510).

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

55394090000 is an equidigital number, since it uses as much as digits as its factorization.

55394090000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5539437 (or 5539416 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 35.

The spelling of 55394090000 in words is "fifty-five billion, three hundred ninety-four million, ninety thousand".