505131325 has 12 divisors (see below), whose sum is σ = 639691200. Its totient is φ = 395506160.

The previous prime is 505131323. The next prime is 505131331. The reversal of 505131325 is 523131505.

It is not a de Polignac number, because 505131325 - 2¹ = 505131323 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 505131325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505131323) 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, 213775 + ... + 216124.

It is an arithmetic number, because the mean of its divisors is an integer number (53307600).

Almost surely, 2^505131325 is an apocalyptic number.

It is an amenable number.

505131325 is a deficient number, since it is larger than the sum of its proper divisors (134559875).

505131325 is a wasteful number, since it uses less digits than its factorization.

505131325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429956 (or 429951 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 505131325 is about 22475.1268072062. The cubic root of 505131325 is about 796.4064472471.

The spelling of 505131325 in words is "five hundred five million, one hundred thirty-one thousand, three hundred twenty-five".