538506225 has 36 divisors (see below), whose sum is σ = 1000258896. Its totient is φ = 287200080.

The previous prime is 538506223. The next prime is 538506247. The reversal of 538506225 is 522605835.

It is a happy number.

It is not a de Polignac number, because 538506225 - 2¹ = 538506223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 538506225.

It is not an unprimeable number, because it can be changed into a prime (538506223) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 38247 + ... + 50396.

Almost surely, 2^538506225 is an apocalyptic number.

It is an amenable number.

538506225 is a deficient number, since it is larger than the sum of its proper divisors (461752671).

538506225 is an equidigital number, since it uses as much as digits as its factorization.

538506225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88668 (or 88651 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 538506225 is about 23205.7368984482. The cubic root of 538506225 is about 813.5737157692.

The spelling of 538506225 in words is "five hundred thirty-eight million, five hundred six thousand, two hundred twenty-five".