55055004990 has 16 divisors (see below), whose sum is σ = 132132012048. Its totient is φ = 14681334656.

The previous prime is 55055004989. The next prime is 55055004997. The reversal of 55055004990 is 9940055055.

55055004990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55055004997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 917583387 + ... + 917583446.

It is an arithmetic number, because the mean of its divisors is an integer number (8258250753).

Almost surely, 2^55055004990 is an apocalyptic number.

55055004990 is an abundant number, since it is smaller than the sum of its proper divisors (77077007058).

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

55055004990 is a wasteful number, since it uses less digits than its factorization.

55055004990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835166843.

The product of its (nonzero) digits is 202500, while the sum is 42.

The spelling of 55055004990 in words is "fifty-five billion, fifty-five million, four thousand, nine hundred ninety".