505528025 has 12 divisors (see below), whose sum is σ = 628758864. Its totient is φ = 403194000.

The previous prime is 505528021. The next prime is 505528033. The reversal of 505528025 is 520825505.

It is not a de Polignac number, because 505528025 - 2² = 505528021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 505527982 and 505528000.

It is not an unprimeable number, because it can be changed into a prime (505528021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22271 + ... + 38820.

It is an arithmetic number, because the mean of its divisors is an integer number (52396572).

Almost surely, 2^505528025 is an apocalyptic number.

It is an amenable number.

505528025 is a deficient number, since it is larger than the sum of its proper divisors (123230839).

505528025 is a wasteful number, since it uses less digits than its factorization.

505528025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61432 (or 61427 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

The square root of 505528025 is about 22483.9503868871. The cubic root of 505528025 is about 796.6148760607.

The spelling of 505528025 in words is "five hundred five million, five hundred twenty-eight thousand, twenty-five".