520252545 has 8 divisors (see below), whose sum is σ = 832404096. Its totient is φ = 277468016.

The previous prime is 520252517. The next prime is 520252561. The reversal of 520252545 is 545252025.

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 520252545 - 2⁸ = 520252289 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17341737 + ... + 17341766.

It is an arithmetic number, because the mean of its divisors is an integer number (104050512).

Almost surely, 2^520252545 is an apocalyptic number.

It is an amenable number.

520252545 is a deficient number, since it is larger than the sum of its proper divisors (312151551).

520252545 is a wasteful number, since it uses less digits than its factorization.

520252545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34683511.

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 520252545 is about 22809.0452452530. The cubic root of 520252545 is about 804.2753119547.

The spelling of 520252545 in words is "five hundred twenty million, two hundred fifty-two thousand, five hundred forty-five".