520371975 has 12 divisors (see below), whose sum is σ = 860348456. Its totient is φ = 277531680.

The previous prime is 520371961. The next prime is 520371977. The reversal of 520371975 is 579173025.

It is not a de Polignac number, because 520371975 - 2⁷ = 520371847 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 (520371977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3469072 + ... + 3469221.

Almost surely, 2^520371975 is an apocalyptic number.

520371975 is a deficient number, since it is larger than the sum of its proper divisors (339976481).

520371975 is a wasteful number, since it uses less digits than its factorization.

520371975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6938306 (or 6938301 counting only the distinct ones).

The product of its (nonzero) digits is 66150, while the sum is 39.

The square root of 520371975 is about 22811.6631353350. The cubic root of 520371975 is about 804.3368508184.

The spelling of 520371975 in words is "five hundred twenty million, three hundred seventy-one thousand, nine hundred seventy-five".