520795 has 16 divisors (see below), whose sum is σ = 723168. Its totient is φ = 355840.
The previous prime is 520787. The next prime is 520813. The reversal of 520795 is 597025.
It is not a de Polignac number, because 520795 - 23 = 520787 is a prime.
It is a Duffinian number.
520795 is a lucky number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 657 + ... + 1213.
It is an arithmetic number, because the mean of its divisors is an integer number (45198).
2520795 is an apocalyptic number.
520795 is a gapful number since it is divisible by the number (55) formed by its first and last digit.
520795 is a deficient number, since it is larger than the sum of its proper divisors (202373).
520795 is a wasteful number, since it uses less digits than its factorization.
520795 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 590.
The product of its (nonzero) digits is 3150, while the sum is 28.
The square root of 520795 is about 721.6612778860. The cubic root of 520795 is about 80.4554747793.
The spelling of 520795 in words is "five hundred twenty thousand, seven hundred ninety-five".
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