505925 has 24 divisors (see below), whose sum is σ = 744000. Its totient is φ = 341040.

The previous prime is 505919. The next prime is 505927. The reversal of 505925 is 529505.

It is not a de Polignac number, because 505925 - 2⁸ = 505669 is a prime.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 505894 and 505903.

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 505925.

It is not an unprimeable number, because it can be changed into a prime (505927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8546 + ... + 8604.

It is an arithmetic number, because the mean of its divisors is an integer number (31000).

2⁵⁰⁵⁹²⁵ is an apocalyptic number.

It is an amenable number.

505925 is a deficient number, since it is larger than the sum of its proper divisors (238075).

505925 is an equidigital number, since it uses as much as digits as its factorization.

505925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 505925 is about 711.2840501516. The cubic root of 505925 is about 79.6823340237.

The spelling of 505925 in words is "five hundred five thousand, nine hundred twenty-five".