520212671 has 8 divisors (see below), whose sum is σ = 568263504. Its totient is φ = 472288320.

The previous prime is 520212661. The next prime is 520212683. The reversal of 520212671 is 176212025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 520212671 - 2⁶ = 520212607 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 520212671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520212601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22910 + ... + 39563.

It is an arithmetic number, because the mean of its divisors is an integer number (71032938).

Almost surely, 2^520212671 is an apocalyptic number.

520212671 is a deficient number, since it is larger than the sum of its proper divisors (48050833).

520212671 is a wasteful number, since it uses less digits than its factorization.

520212671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63241.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 520212671 is about 22808.1711454470. The cubic root of 520212671 is about 804.2547639257.

Adding to 520212671 its reverse (176212025), we get a palindrome (696424696).

The spelling of 520212671 in words is "five hundred twenty million, two hundred twelve thousand, six hundred seventy-one".