9055621 has 4 divisors (see below), whose sum is σ = 9115744. Its totient is φ = 8995500.

The previous prime is 9055601. The next prime is 9055663. The reversal of 9055621 is 1265509.

9055621 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9055621 - 2⁵ = 9055589 is a prime.

It is a Duffinian number.

9055621 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 9055621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9055601) 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, 29835 + ... + 30136.

It is an arithmetic number, because the mean of its divisors is an integer number (2278936).

Almost surely, 2^9055621 is an apocalyptic number.

It is an amenable number.

9055621 is a deficient number, since it is larger than the sum of its proper divisors (60123).

9055621 is a wasteful number, since it uses less digits than its factorization.

9055621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60122.

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

The square root of 9055621 is about 3009.2558880893. The cubic root of 9055621 is about 208.4360075590.

The spelling of 9055621 in words is "nine million, fifty-five thousand, six hundred twenty-one".