520417825 has 12 divisors (see below), whose sum is σ = 647779968. Its totient is φ = 414746000.

The previous prime is 520417823. The next prime is 520417853. The reversal of 520417825 is 528714025.

It is a happy number.

520417825 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 520417825 - 2¹ = 520417823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520417823) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 33001 + ... + 46150.

It is an arithmetic number, because the mean of its divisors is an integer number (53981664).

Almost surely, 2^520417825 is an apocalyptic number.

It is an amenable number.

520417825 is a deficient number, since it is larger than the sum of its proper divisors (127362143).

520417825 is a wasteful number, since it uses less digits than its factorization.

520417825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79424 (or 79419 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 520417825 is about 22812.6680815726. The cubic root of 520417825 is about 804.3604735109.

The spelling of 520417825 in words is "five hundred twenty million, four hundred seventeen thousand, eight hundred twenty-five".