55990084 has 12 divisors (see below), whose sum is σ = 98390908. Its totient is φ = 27878880.

The previous prime is 55990069. The next prime is 55990087. The reversal of 55990084 is 48009955.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

55990084 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 28196100 + 27793984 = 5310^2 + 5272^2 .

It is not an unprimeable number, because it can be changed into a prime (55990087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232204 + ... + 232444.

Almost surely, 2^55990084 is an apocalyptic number.

It is an amenable number.

55990084 is a deficient number, since it is larger than the sum of its proper divisors (42400824).

55990084 is an frugal number, since it uses more digits than its factorization.

55990084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 55990084 is about 7482.6522035973. The cubic root of 55990084 is about 382.5636535243.

The spelling of 55990084 in words is "fifty-five million, nine hundred ninety thousand, eighty-four".