55090406 has 12 divisors (see below), whose sum is σ = 96127308. Its totient is φ = 23610132.

The previous prime is 55090397. The next prime is 55090411. The reversal of 55090406 is 60409055.

55090406 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 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 5 ways as a sum of consecutive naturals, for example, 280976 + ... + 281171.

It is an arithmetic number, because the mean of its divisors is an integer number (8010609).

Almost surely, 2^55090406 is an apocalyptic number.

55090406 is a deficient number, since it is larger than the sum of its proper divisors (41036902).

55090406 is a wasteful number, since it uses less digits than its factorization.

55090406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562163 (or 562156 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 55090406 is about 7422.2911557012. The cubic root of 55090406 is about 380.5035015388.

The spelling of 55090406 in words is "fifty-five million, ninety thousand, four hundred six".