520325135 has 16 divisors (see below), whose sum is σ = 685735200. Its totient is φ = 375872640.

The previous prime is 520325131. The next prime is 520325153. The reversal of 520325135 is 531523025.

It is not a de Polignac number, because 520325135 - 2² = 520325131 is a prime.

It is a super-2 number, since 2×520325135² = 541476492225536450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520325131) 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 15 ways as a sum of consecutive naturals, for example, 23552 + ... + 39941.

It is an arithmetic number, because the mean of its divisors is an integer number (42858450).

Almost surely, 2^520325135 is an apocalyptic number.

520325135 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

520325135 is a deficient number, since it is larger than the sum of its proper divisors (165410065).

520325135 is a wasteful number, since it uses less digits than its factorization.

520325135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63658.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 520325135 is about 22810.6364444309. The cubic root of 520325135 is about 804.3127166282.

The spelling of 520325135 in words is "five hundred twenty million, three hundred twenty-five thousand, one hundred thirty-five".