55553583 has 8 divisors (see below), whose sum is σ = 74215168. Its totient is φ = 36963864.

The previous prime is 55553573. The next prime is 55553591. The reversal of 55553583 is 38535555.

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

It is not a de Polignac number, because 55553583 - 2⁴ = 55553567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55553573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16135 + ... + 19272.

It is an arithmetic number, because the mean of its divisors is an integer number (9276896).

Almost surely, 2^55553583 is an apocalyptic number.

55553583 is a deficient number, since it is larger than the sum of its proper divisors (18661585).

55553583 is a wasteful number, since it uses less digits than its factorization.

55553583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35933.

The product of its digits is 225000, while the sum is 39.

The square root of 55553583 is about 7453.4276007754. The cubic root of 55553583 is about 381.5668981061.

The spelling of 55553583 in words is "fifty-five million, five hundred fifty-three thousand, five hundred eighty-three".