5121225 has 42 divisors (see below), whose sum is σ = 9555006. Its totient is φ = 2721600.

The previous prime is 5121223. The next prime is 5121227. The reversal of 5121225 is 5221215.

It is an interprime number because it is at equal distance from previous prime (5121223) and next prime (5121227).

It can be written as a sum of positive squares in 3 ways, for example, as 571536 + 4549689 = 756^2 + 2133^2 .

It is not a de Polignac number, because 5121225 - 2¹ = 5121223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5121198 and 5121207.

It is not an unprimeable number, because it can be changed into a prime (5121223) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 18085 + ... + 18365.

Almost surely, 2^5121225 is an apocalyptic number.

It is an amenable number.

5121225 is a deficient number, since it is larger than the sum of its proper divisors (4433781).

5121225 is an equidigital number, since it uses as much as digits as its factorization.

5121225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309 (or 289 counting only the distinct ones).

The product of its digits is 200, while the sum is 18.

The square root of 5121225 is about 2263.0123729224. The cubic root of 5121225 is about 172.3685198486.

The spelling of 5121225 in words is "five million, one hundred twenty-one thousand, two hundred twenty-five".