505325757 has 4 divisors (see below), whose sum is σ = 673767680. Its totient is φ = 336883836.

The previous prime is 505325753. The next prime is 505325759. The reversal of 505325757 is 757523505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 505325757 - 2² = 505325753 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505325753) 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 3 ways as a sum of consecutive naturals, for example, 84220957 + ... + 84220962.

It is an arithmetic number, because the mean of its divisors is an integer number (168441920).

Almost surely, 2^505325757 is an apocalyptic number.

It is an amenable number.

505325757 is a deficient number, since it is larger than the sum of its proper divisors (168441923).

505325757 is a wasteful number, since it uses less digits than its factorization.

505325757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168441922.

The product of its (nonzero) digits is 183750, while the sum is 39.

The square root of 505325757 is about 22479.4518838872. The cubic root of 505325757 is about 796.5086167407.

The spelling of 505325757 in words is "five hundred five million, three hundred twenty-five thousand, seven hundred fifty-seven".