520245355 has 32 divisors (see below), whose sum is σ = 740275200. Its totient is φ = 343416192.

The previous prime is 520245353. The next prime is 520245371. The reversal of 520245355 is 553542025.

It is a happy number.

It is not a de Polignac number, because 520245355 - 2¹ = 520245353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520245353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 510036 + ... + 511054.

It is an arithmetic number, because the mean of its divisors is an integer number (23133600).

Almost surely, 2^520245355 is an apocalyptic number.

520245355 is a deficient number, since it is larger than the sum of its proper divisors (220029845).

520245355 is a wasteful number, since it uses less digits than its factorization.

520245355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1563.

The product of its (nonzero) digits is 30000, while the sum is 31.

The square root of 520245355 is about 22808.8876317983. The cubic root of 520245355 is about 804.2716068528.

The spelling of 520245355 in words is "five hundred twenty million, two hundred forty-five thousand, three hundred fifty-five".