5521998 has 8 divisors (see below), whose sum is σ = 11044008. Its totient is φ = 1840664.

The previous prime is 5521993. The next prime is 5522029. The reversal of 5521998 is 8991255.

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

5521998 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5521993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460161 + ... + 460172.

It is an arithmetic number, because the mean of its divisors is an integer number (1380501).

Almost surely, 2^5521998 is an apocalyptic number.

5521998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

5521998 is a wasteful number, since it uses less digits than its factorization.

5521998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920338.

The product of its digits is 32400, while the sum is 39.

The square root of 5521998 is about 2349.8931890620. The cubic root of 5521998 is about 176.7524388696.

The spelling of 5521998 in words is "five million, five hundred twenty-one thousand, nine hundred ninety-eight".