5415221 has 4 divisors (see below), whose sum is σ = 6188832. Its totient is φ = 4641612.

The previous prime is 5415217. The next prime is 5415227. The reversal of 5415221 is 1225145.

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: 1225145 = 5 ⋅245029.

It is a cyclic number.

It is not a de Polignac number, because 5415221 - 2² = 5415217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5415193 and 5415202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5415227) 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, 386795 + ... + 386808.

It is an arithmetic number, because the mean of its divisors is an integer number (1547208).

Almost surely, 2^5415221 is an apocalyptic number.

It is an amenable number.

5415221 is a deficient number, since it is larger than the sum of its proper divisors (773611).

5415221 is an equidigital number, since it uses as much as digits as its factorization.

5415221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773610.

The product of its digits is 400, while the sum is 20.

The square root of 5415221 is about 2327.0627408817. The cubic root of 5415221 is about 175.6057484502.

The spelling of 5415221 in words is "five million, four hundred fifteen thousand, two hundred twenty-one".