5521985 has 8 divisors (see below), whose sum is σ = 7573056. Its totient is φ = 3786480.

The previous prime is 5521981. The next prime is 5521993. The reversal of 5521985 is 5891255.

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

It is not a de Polignac number, because 5521985 - 2² = 5521981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 157771 = 5521985 / (5 + 5 + 2 + 1 + 9 + 8 + 5).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5521981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78851 + ... + 78920.

It is an arithmetic number, because the mean of its divisors is an integer number (946632).

Almost surely, 2^5521985 is an apocalyptic number.

It is an amenable number.

5521985 is a deficient number, since it is larger than the sum of its proper divisors (2051071).

5521985 is a wasteful number, since it uses less digits than its factorization.

5521985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157783.

The product of its digits is 18000, while the sum is 35.

The square root of 5521985 is about 2349.8904229772. The cubic root of 5521985 is about 176.7523001647.

The spelling of 5521985 in words is "five million, five hundred twenty-one thousand, nine hundred eighty-five".