520680897 has 24 divisors (see below), whose sum is σ = 821620800. Its totient is φ = 315120480.

The previous prime is 520680887. The next prime is 520680931. The reversal of 520680897 is 798086025.

It is not a de Polignac number, because 520680897 - 2⁶ = 520680833 is a prime.

It is a super-2 number, since 2×520680897² = 542217193001449218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (520680827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75604 + ... + 82202.

It is an arithmetic number, because the mean of its divisors is an integer number (34234200).

Almost surely, 2^520680897 is an apocalyptic number.

It is an amenable number.

520680897 is a deficient number, since it is larger than the sum of its proper divisors (300939903).

520680897 is a wasteful number, since it uses less digits than its factorization.

520680897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7413 (or 7410 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 520680897 is about 22818.4332722472. The cubic root of 520680897 is about 804.4959858261.

The spelling of 520680897 in words is "five hundred twenty million, six hundred eighty thousand, eight hundred ninety-seven".