5521000 has 32 divisors (see below), whose sum is σ = 12921480. Its totient is φ = 2208000.

The previous prime is 5520967. The next prime is 5521003. The reversal of 5521000 is 1255.

It can be written as a sum of positive squares in 4 ways, for example, as 1085764 + 4435236 = 1042^2 + 2106^2 .

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (5521003) 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 7 ways as a sum of consecutive naturals, for example, 1761 + ... + 3760.

Almost surely, 2^5521000 is an apocalyptic number.

5521000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5521000 is an abundant number, since it is smaller than the sum of its proper divisors (7400480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5521000 is a wasteful number, since it uses less digits than its factorization.

5521000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5542 (or 5528 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 13.

The square root of 5521000 is about 2349.6808293894. The cubic root of 5521000 is about 176.7417899727.

Adding to 5521000 its reverse (1255), we get a palindrome (5522255).

The spelling of 5521000 in words is "five million, five hundred twenty-one thousand".