520413457 has 8 divisors (see below), whose sum is σ = 530409600. Its totient is φ = 510491520.

The previous prime is 520413449. The next prime is 520413493. The reversal of 520413457 is 754314025.

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 520413457 - 2³ = 520413449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520413437) 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, 4288 + ... + 32545.

It is an arithmetic number, because the mean of its divisors is an integer number (66301200).

Almost surely, 2^520413457 is an apocalyptic number.

It is an amenable number.

520413457 is a deficient number, since it is larger than the sum of its proper divisors (9996143).

520413457 is a wasteful number, since it uses less digits than its factorization.

520413457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37103.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 520413457 is about 22812.5723450908. The cubic root of 520413457 is about 804.3582231035.

The spelling of 520413457 in words is "five hundred twenty million, four hundred thirteen thousand, four hundred fifty-seven".