520924345 has 8 divisors (see below), whose sum is σ = 626177664. Its totient is φ = 416027184.

The previous prime is 520924337. The next prime is 520924357. The reversal of 520924345 is 543429025.

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 520924345 - 2³ = 520924337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 520924345.

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, 85809 + ... + 91678.

It is an arithmetic number, because the mean of its divisors is an integer number (78272208).

Almost surely, 2^520924345 is an apocalyptic number.

It is an amenable number.

520924345 is a deficient number, since it is larger than the sum of its proper divisors (105253319).

520924345 is a wasteful number, since it uses less digits than its factorization.

520924345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178079.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 520924345 is about 22823.7671079951. The cubic root of 520924345 is about 804.6213488675.

The spelling of 520924345 in words is "five hundred twenty million, nine hundred twenty-four thousand, three hundred forty-five".