520771493 has 8 divisors (see below), whose sum is σ = 569249856. Its totient is φ = 472482400.

The previous prime is 520771483. The next prime is 520771519. The reversal of 520771493 is 394177025.

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 520771493 - 2⁴ = 520771477 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 (520771403) 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, 41528 + ... + 52593.

It is an arithmetic number, because the mean of its divisors is an integer number (71156232).

Almost surely, 2^520771493 is an apocalyptic number.

It is an amenable number.

520771493 is a deficient number, since it is larger than the sum of its proper divisors (48478363).

520771493 is a wasteful number, since it uses less digits than its factorization.

520771493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94635.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 520771493 is about 22820.4183353417. The cubic root of 520771493 is about 804.5426426121.

The spelling of 520771493 in words is "five hundred twenty million, seven hundred seventy-one thousand, four hundred ninety-three".