5221225 has 9 divisors (see below), whose sum is σ = 6488517. Its totient is φ = 4167840.

The previous prime is 5221217. The next prime is 5221231.

The square root of 5221225 is 2285.

It is a perfect power (a square), and thus also a powerful number.

5221225 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 363609 + 4857616 = 603^2 + 2204^2 .

It is not a de Polignac number, because 5221225 - 2³ = 5221217 is a prime.

It is a super-2 number, since 2×5221225² = 54522381001250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11197 + ... + 11653.

Almost surely, 2^5221225 is an apocalyptic number.

5221225 is the 2285-th square number.

5221225 is the 1143-rd centered octagonal number.

It is an amenable number.

5221225 is a deficient number, since it is larger than the sum of its proper divisors (1267292).

5221225 is an frugal number, since it uses more digits than its factorization.

5221225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924 (or 462 counting only the distinct ones).

The product of its digits is 400, while the sum is 19.

The cubic root of 5221225 is about 173.4832180697.

Multiplying 5221225 by its product of digits (400), we get a square (2088490000 = 45700²).

The spelling of 5221225 in words is "five million, two hundred twenty-one thousand, two hundred twenty-five".