520427493 has 12 divisors (see below), whose sum is σ = 752057280. Its totient is φ = 346799976.

The previous prime is 520427483. The next prime is 520427497. The reversal of 520427493 is 394724025.

520427493 is a `hidden beast` number, since 520 + 42 + 7 + 4 + 93 = 666.

It is not a de Polignac number, because 520427493 - 2⁶ = 520427429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520427497) 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, 11518 + ... + 34256.

It is an arithmetic number, because the mean of its divisors is an integer number (62671440).

Almost surely, 2^520427493 is an apocalyptic number.

It is an amenable number.

520427493 is a deficient number, since it is larger than the sum of its proper divisors (231629787).

520427493 is a wasteful number, since it uses less digits than its factorization.

520427493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25288 (or 25285 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 520427493 is about 22812.8799803970. The cubic root of 520427493 is about 804.3654544503.

The spelling of 520427493 in words is "five hundred twenty million, four hundred twenty-seven thousand, four hundred ninety-three".