520886685 has 32 divisors (see below), whose sum is σ = 913254912. Its totient is φ = 251420480.

The previous prime is 520886683. The next prime is 520886689. The reversal of 520886685 is 586688025.

It is not a de Polignac number, because 520886685 - 2¹ = 520886683 is a prime.

It is a super-2 number, since 2×520886685² = 542645877220578450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520886683) 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, 30502 + ... + 44408.

It is an arithmetic number, because the mean of its divisors is an integer number (28539216).

Almost surely, 2^520886685 is an apocalyptic number.

520886685 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

520886685 is a deficient number, since it is larger than the sum of its proper divisors (392368227).

520886685 is a wasteful number, since it uses less digits than its factorization.

520886685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14153.

The product of its (nonzero) digits is 921600, while the sum is 48.

The square root of 520886685 is about 22822.9420759025. The cubic root of 520886685 is about 804.6019584829.

The spelling of 520886685 in words is "five hundred twenty million, eight hundred eighty-six thousand, six hundred eighty-five".