5815225 has 24 divisors (see below), whose sum is σ = 8046360. Its totient is φ = 4139520.

The previous prime is 5815223. The next prime is 5815231. The reversal of 5815225 is 5225185.

It can be written as a sum of positive squares in 12 ways, for example, as 4247721 + 1567504 = 2061^2 + 1252^2 .

It is not a de Polignac number, because 5815225 - 2¹ = 5815223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5815193 and 5815202.

It is not an unprimeable number, because it can be changed into a prime (5815223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9117 + ... + 9733.

It is an arithmetic number, because the mean of its divisors is an integer number (335265).

Almost surely, 2^5815225 is an apocalyptic number.

It is an amenable number.

5815225 is a deficient number, since it is larger than the sum of its proper divisors (2231135).

5815225 is a wasteful number, since it uses less digits than its factorization.

5815225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669 (or 664 counting only the distinct ones).

The product of its digits is 4000, while the sum is 28.

The square root of 5815225 is about 2411.4777627007. The cubic root of 5815225 is about 179.8272519603.

The spelling of 5815225 in words is "five million, eight hundred fifteen thousand, two hundred twenty-five".