538225 has 6 divisors (see below), whose sum is σ = 667430. Its totient is φ = 430560.

The previous prime is 538201. The next prime is 538247. The reversal of 538225 is 522835.

It can be written as a sum of positive squares in 3 ways, for example, as 2401 + 535824 = 49^2 + 732^2 .

It is not a de Polignac number, because 538225 - 2¹⁷ = 407153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 21529 = 538225 / (5 + 3 + 8 + 2 + 2 + 5).

It is a d-powerful number, because it can be written as 5 + 3¹¹ + 2¹⁶ + 8⁵ + 2¹⁸ + 5⁴ .

It is a self number, because there is not a number n which added to its sum of digits gives 538225.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10740 + ... + 10789.

2⁵³⁸²²⁵ is an apocalyptic number.

It is an amenable number.

538225 is a deficient number, since it is larger than the sum of its proper divisors (129205).

538225 is a wasteful number, since it uses less digits than its factorization.

538225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21539 (or 21534 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 538225 is about 733.6381942075. The cubic root of 538225 is about 81.3432066458.

The spelling of 538225 in words is "five hundred thirty-eight thousand, two hundred twenty-five".