5590621 has 4 divisors (see below), whose sum is σ = 5604700. Its totient is φ = 5576544.

The previous prime is 5590619. The next prime is 5590657. The reversal of 5590621 is 1260955.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4708900 + 881721 = 2170^2 + 939^2 .

It is a cyclic number.

It is not a de Polignac number, because 5590621 - 2¹ = 5590619 is a prime.

It is a super-5 number, since 5×5590621⁵ (a number of 35 digits) contains 55555 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5590621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5590601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6426 + ... + 7243.

It is an arithmetic number, because the mean of its divisors is an integer number (1401175).

It is a Poulet number, since it divides 2^5590620-1.

Almost surely, 2^5590621 is an apocalyptic number.

It is an amenable number.

5590621 is a deficient number, since it is larger than the sum of its proper divisors (14079).

5590621 is a wasteful number, since it uses less digits than its factorization.

5590621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14078.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 5590621 is about 2364.4494073674. The cubic root of 5590621 is about 177.4816062405.

The spelling of 5590621 in words is "five million, five hundred ninety thousand, six hundred twenty-one".