5453621 has 4 divisors (see below), whose sum is σ = 5463744. Its totient is φ = 5443500.

The previous prime is 5453603. The next prime is 5453629. The reversal of 5453621 is 1263545.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1263545 = 5 ⋅252709.

It is a cyclic number.

It is not a de Polignac number, because 5453621 - 2⁶ = 5453557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5453629) 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, 4205 + ... + 5346.

It is an arithmetic number, because the mean of its divisors is an integer number (1365936).

Almost surely, 2^5453621 is an apocalyptic number.

It is an amenable number.

5453621 is a deficient number, since it is larger than the sum of its proper divisors (10123).

5453621 is an equidigital number, since it uses as much as digits as its factorization.

5453621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10122.

The product of its digits is 3600, while the sum is 26.

The square root of 5453621 is about 2335.2989102040. The cubic root of 5453621 is about 176.0198518413.

The spelling of 5453621 in words is "five million, four hundred fifty-three thousand, six hundred twenty-one".