55583445 has 16 divisors (see below), whose sum is σ = 89470080. Its totient is φ = 29465664.

The previous prime is 55583443. The next prime is 55583453. The reversal of 55583445 is 54438555.

It is not a de Polignac number, because 55583445 - 2¹ = 55583443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55583443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8590 + ... + 13599.

It is an arithmetic number, because the mean of its divisors is an integer number (5591880).

Almost surely, 2^55583445 is an apocalyptic number.

It is an amenable number.

55583445 is a deficient number, since it is larger than the sum of its proper divisors (33886635).

55583445 is a wasteful number, since it uses less digits than its factorization.

55583445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22364.

The product of its digits is 240000, while the sum is 39.

The square root of 55583445 is about 7455.4305710670. The cubic root of 55583445 is about 381.6352543914.

The spelling of 55583445 in words is "fifty-five million, five hundred eighty-three thousand, four hundred forty-five".