520346365 has 32 divisors (see below), whose sum is σ = 812353536. Its totient is φ = 310263360.

The previous prime is 520346363. The next prime is 520346383. The reversal of 520346365 is 563643025.

It is not a de Polignac number, because 520346365 - 2¹ = 520346363 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 520346365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520346363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20527 + ... + 38236.

It is an arithmetic number, because the mean of its divisors is an integer number (25386048).

Almost surely, 2^520346365 is an apocalyptic number.

520346365 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

520346365 is a deficient number, since it is larger than the sum of its proper divisors (292007171).

520346365 is a wasteful number, since it uses less digits than its factorization.

520346365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58809.

The product of its (nonzero) digits is 64800, while the sum is 34.

The square root of 520346365 is about 22811.1017927675. The cubic root of 520346365 is about 804.3236555109.

The spelling of 520346365 in words is "five hundred twenty million, three hundred forty-six thousand, three hundred sixty-five".