520901211 has 4 divisors (see below), whose sum is σ = 694534952. Its totient is φ = 347267472.

The previous prime is 520901197. The next prime is 520901231. The reversal of 520901211 is 112109025.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 520901211 - 2¹⁴ = 520884827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520901231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86816866 + ... + 86816871.

It is an arithmetic number, because the mean of its divisors is an integer number (173633738).

Almost surely, 2^520901211 is an apocalyptic number.

520901211 is a deficient number, since it is larger than the sum of its proper divisors (173633741).

520901211 is a wasteful number, since it uses less digits than its factorization.

520901211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173633740.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 520901211 is about 22823.2603061000. The cubic root of 520901211 is about 804.6094377420.

It can be divided in two parts, 52090 and 1211, that added together give a triangular number (53301 = T₃₂₆).

The spelling of 520901211 in words is "five hundred twenty million, nine hundred one thousand, two hundred eleven".