520771424 has 12 divisors (see below), whose sum is σ = 1025268804. Its totient is φ = 260385696.

The previous prime is 520771403. The next prime is 520771477. The reversal of 520771424 is 424177025.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 16274107 = 520771424 / (5 + 2 + 0 + 7 + 7 + 1 + 4 + 2 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8137022 + ... + 8137085.

It is an arithmetic number, because the mean of its divisors is an integer number (85439067).

Almost surely, 2^520771424 is an apocalyptic number.

It is an amenable number.

520771424 is a deficient number, since it is larger than the sum of its proper divisors (504497380).

520771424 is a wasteful number, since it uses less digits than its factorization.

520771424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16274117 (or 16274109 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 520771424 is about 22820.4168235376. The cubic root of 520771424 is about 804.5426070793.

The spelling of 520771424 in words is "five hundred twenty million, seven hundred seventy-one thousand, four hundred twenty-four".