55590505 has 8 divisors (see below), whose sum is σ = 67218624. Its totient is φ = 44132400.

The previous prime is 55590497. The next prime is 55590541. The reversal of 55590505 is 50509555.

55590505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55590505 - 2³ = 55590497 is a prime.

It is a Duffinian 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, 41781 + ... + 43090.

It is an arithmetic number, because the mean of its divisors is an integer number (8402328).

Almost surely, 2^55590505 is an apocalyptic number.

It is an amenable number.

55590505 is a deficient number, since it is larger than the sum of its proper divisors (11628119).

55590505 is a wasteful number, since it uses less digits than its factorization.

55590505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85007.

The product of its (nonzero) digits is 28125, while the sum is 34.

The square root of 55590505 is about 7455.9040363996. The cubic root of 55590505 is about 381.6514116652.

The spelling of 55590505 in words is "fifty-five million, five hundred ninety thousand, five hundred five".