5205621 has 8 divisors (see below), whose sum is σ = 7349184. Its totient is φ = 3266240.

The previous prime is 5205619. The next prime is 5205653. The reversal of 5205621 is 1265025.

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

It is a cyclic number.

It is not a de Polignac number, because 5205621 - 2¹ = 5205619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5205671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50985 + ... + 51086.

It is an arithmetic number, because the mean of its divisors is an integer number (918648).

Almost surely, 2^5205621 is an apocalyptic number.

5205621 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

5205621 is a deficient number, since it is larger than the sum of its proper divisors (2143563).

5205621 is a wasteful number, since it uses less digits than its factorization.

5205621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102091.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 5205621 is about 2281.5830030924. The cubic root of 5205621 is about 173.3102233325.

The spelling of 5205621 in words is "five million, two hundred five thousand, six hundred twenty-one".