520365471 has 4 divisors (see below), whose sum is σ = 693820632. Its totient is φ = 346910312.

The previous prime is 520365451. The next prime is 520365499. The reversal of 520365471 is 174563025.

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 520365471 - 2⁹ = 520364959 is a prime.

It is a super-3 number, since 3×520365471³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520365451) 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, 86727576 + ... + 86727581.

It is an arithmetic number, because the mean of its divisors is an integer number (173455158).

Almost surely, 2^520365471 is an apocalyptic number.

520365471 is a deficient number, since it is larger than the sum of its proper divisors (173455161).

520365471 is a wasteful number, since it uses less digits than its factorization.

520365471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173455160.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 520365471 is about 22811.5205762352. The cubic root of 520365471 is about 804.3334997356. Note that the first 3 decimals are identical.

The spelling of 520365471 in words is "five hundred twenty million, three hundred sixty-five thousand, four hundred seventy-one".