520576385 has 32 divisors (see below), whose sum is σ = 734517504. Its totient is φ = 346752000.

The previous prime is 520576351. The next prime is 520576387. The reversal of 520576385 is 583675025.

It is not a de Polignac number, because 520576385 - 2¹² = 520572289 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (520576387) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 402590 + ... + 403880.

It is an arithmetic number, because the mean of its divisors is an integer number (22953672).

Almost surely, 2^520576385 is an apocalyptic number.

It is an amenable number.

520576385 is a deficient number, since it is larger than the sum of its proper divisors (213941119).

520576385 is a wasteful number, since it uses less digits than its factorization.

520576385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625.

The product of its (nonzero) digits is 252000, while the sum is 41.

The square root of 520576385 is about 22816.1430789693. The cubic root of 520576385 is about 804.4421556004.

The spelling of 520576385 in words is "five hundred twenty million, five hundred seventy-six thousand, three hundred eighty-five".