5508421 has 4 divisors (see below), whose sum is σ = 5686144. Its totient is φ = 5330700.

The previous prime is 5508401. The next prime is 5508469. The reversal of 5508421 is 1248055.

5508421 = 71² + 72² + ... + 256².

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 5508421 - 2¹⁵ = 5475653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5508401) 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, 88815 + ... + 88876.

It is an arithmetic number, because the mean of its divisors is an integer number (1421536).

Almost surely, 2^5508421 is an apocalyptic number.

It is an amenable number.

5508421 is a deficient number, since it is larger than the sum of its proper divisors (177723).

5508421 is a wasteful number, since it uses less digits than its factorization.

5508421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177722.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 5508421 is about 2347.0025564537. The cubic root of 5508421 is about 176.6074588984.

It can be divided in two parts, 5508 and 421, that added together give a square (5929 = 77²).

The spelling of 5508421 in words is "five million, five hundred eight thousand, four hundred twenty-one".