55880490 has 16 divisors (see below), whose sum is σ = 134113248. Its totient is φ = 14901456.

The previous prime is 55880459. The next prime is 55880543. The reversal of 55880490 is 9408855.

55880490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 931312 + ... + 931371.

It is an arithmetic number, because the mean of its divisors is an integer number (8382078).

Almost surely, 2^55880490 is an apocalyptic number.

55880490 is an abundant number, since it is smaller than the sum of its proper divisors (78232758).

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

55880490 is a wasteful number, since it uses less digits than its factorization.

55880490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862693.

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 55880490 is about 7475.3254109771. The cubic root of 55880490 is about 382.3138827117.

The spelling of 55880490 in words is "fifty-five million, eight hundred eighty thousand, four hundred ninety".