520785265 has 32 divisors (see below), whose sum is σ = 839091456. Its totient is φ = 299669760.

The previous prime is 520785263. The next prime is 520785313. The reversal of 520785265 is 562587025.

It is not a de Polignac number, because 520785265 - 2¹ = 520785263 is a prime.

It is a super-2 number, since 2×520785265² = 542434584482240450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (520785263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47022 + ... + 57031.

It is an arithmetic number, because the mean of its divisors is an integer number (26221608).

Almost surely, 2^520785265 is an apocalyptic number.

520785265 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

520785265 is a deficient number, since it is larger than the sum of its proper divisors (318306191).

520785265 is a wasteful number, since it uses less digits than its factorization.

520785265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104089.

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 520785265 is about 22820.7200806635. The cubic root of 520785265 is about 804.5497346949.

The spelling of 520785265 in words is "five hundred twenty million, seven hundred eighty-five thousand, two hundred sixty-five".