505225225 has 12 divisors (see below), whose sum is σ = 635831824. Its totient is φ = 398146320.

The previous prime is 505225169. The next prime is 505225243. The reversal of 505225225 is 522522505.

It is not a de Polignac number, because 505225225 - 2¹¹ = 505223177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 505225193 and 505225202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149139 + ... + 152488.

Almost surely, 2^505225225 is an apocalyptic number.

It is an amenable number.

505225225 is a deficient number, since it is larger than the sum of its proper divisors (130606599).

505225225 is a wasteful number, since it uses less digits than its factorization.

505225225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301704 (or 301699 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 505225225 is about 22477.2156861120. The cubic root of 505225225 is about 796.4557927858.

The spelling of 505225225 in words is "five hundred five million, two hundred twenty-five thousand, two hundred twenty-five".