5521590 has 48 divisors (see below), whose sum is σ = 15116400. Its totient is φ = 1394496.

The previous prime is 5521589. The next prime is 5521591. The reversal of 5521590 is 951255.

5521590 is a `hidden beast` number, since 55 + 21 + 590 = 666.

It is an interprime number because it is at equal distance from previous prime (5521589) and next prime (5521591).

It is a super-2 number, since 2×5521590² = 60975912256200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5521591) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96 + ... + 3324.

It is an arithmetic number, because the mean of its divisors is an integer number (314925).

Almost surely, 2^5521590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5521590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7558200).

5521590 is an abundant number, since it is smaller than the sum of its proper divisors (9594810).

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

5521590 is a wasteful number, since it uses less digits than its factorization.

5521590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3261 (or 3258 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

The square root of 5521590 is about 2349.8063750020. The cubic root of 5521590 is about 176.7480855678.

The spelling of 5521590 in words is "five million, five hundred twenty-one thousand, five hundred ninety".