520075641 has 8 divisors (see below), whose sum is σ = 703784224. Its totient is φ = 341542080.

The previous prime is 520075631. The next prime is 520075667. The reversal of 520075641 is 146570025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 520075641 - 2⁷ = 520075513 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 520075599 and 520075608.

It is not an unprimeable number, because it can be changed into a prime (520075601) 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, 1293520 + ... + 1293921.

It is an arithmetic number, because the mean of its divisors is an integer number (87973028).

Almost surely, 2^520075641 is an apocalyptic number.

It is an amenable number.

520075641 is a deficient number, since it is larger than the sum of its proper divisors (183708583).

520075641 is a wasteful number, since it uses less digits than its factorization.

520075641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2587511.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 520075641 is about 22805.1669803139. The cubic root of 520075641 is about 804.1841410731.

The spelling of 520075641 in words is "five hundred twenty million, seventy-five thousand, six hundred forty-one".