5181225 has 48 divisors (see below), whose sum is σ = 9999360. Its totient is φ = 2318400.

The previous prime is 5181223. The next prime is 5181251. The reversal of 5181225 is 5221815.

5181225 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5181225 - 2¹ = 5181223 is a prime.

5181225 is strictly pandigital in base 8.

5181225 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5181195 and 5181204.

It is not an unprimeable number, because it can be changed into a prime (5181223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37206 + ... + 37344.

It is an arithmetic number, because the mean of its divisors is an integer number (208320).

Almost surely, 2^5181225 is an apocalyptic number.

It is an amenable number.

5181225 is a deficient number, since it is larger than the sum of its proper divisors (4818135).

5181225 is a wasteful number, since it uses less digits than its factorization.

5181225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 225 counting only the distinct ones).

The product of its digits is 800, while the sum is 24.

The square root of 5181225 is about 2276.2304364892. The cubic root of 5181225 is about 173.0390614237.

The spelling of 5181225 in words is "five million, one hundred eighty-one thousand, two hundred twenty-five".