505025 has 6 divisors (see below), whose sum is σ = 626262. Its totient is φ = 404000.

The previous prime is 504991. The next prime is 505027. The reversal of 505025 is 520505.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 9409 + 495616 = 97^2 + 704^2 .

It is not a de Polignac number, because 505025 - 2¹⁰ = 504001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 504994 and 505012.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 505025.

It is not an unprimeable number, because it can be changed into a prime (505027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10076 + ... + 10125.

It is an arithmetic number, because the mean of its divisors is an integer number (104377).

2⁵⁰⁵⁰²⁵ is an apocalyptic number.

It is an amenable number.

505025 is a deficient number, since it is larger than the sum of its proper divisors (121237).

505025 is a wasteful number, since it uses less digits than its factorization.

505025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20211 (or 20206 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 17.

The square root of 505025 is about 710.6511098985. The cubic root of 505025 is about 79.6350564844.

The spelling of 505025 in words is "five hundred five thousand, twenty-five".