505800525 has 12 divisors (see below), whose sum is σ = 836256992. Its totient is φ = 269760240.

The previous prime is 505800509. The next prime is 505800551. The reversal of 505800525 is 525008505.

It is not a de Polignac number, because 505800525 - 2⁴ = 505800509 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 = 505800492 and 505800501.

It is a congruent number.

It is an unprimeable number.

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, 3371929 + ... + 3372078.

Almost surely, 2^505800525 is an apocalyptic number.

It is an amenable number.

505800525 is a deficient number, since it is larger than the sum of its proper divisors (330456467).

505800525 is a wasteful number, since it uses less digits than its factorization.

505800525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6744020 (or 6744015 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 505800525 is about 22490.0094486419. The cubic root of 505800525 is about 796.7579862018.

The spelling of 505800525 in words is "five hundred five million, eight hundred thousand, five hundred twenty-five".