520372271 has 4 divisors (see below), whose sum is σ = 529192200. Its totient is φ = 511552344.

The previous prime is 520372267. The next prime is 520372291. The reversal of 520372271 is 172273025.

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

It is a cyclic number.

It is not a de Polignac number, because 520372271 - 2² = 520372267 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520372291) 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, 4409876 + ... + 4409993.

It is an arithmetic number, because the mean of its divisors is an integer number (132298050).

Almost surely, 2^520372271 is an apocalyptic number.

520372271 is a deficient number, since it is larger than the sum of its proper divisors (8819929).

520372271 is an equidigital number, since it uses as much as digits as its factorization.

520372271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8819928.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 520372271 is about 22811.6696232433. The cubic root of 520372271 is about 804.3370033270.

The spelling of 520372271 in words is "five hundred twenty million, three hundred seventy-two thousand, two hundred seventy-one".