520325130352240 has 20 divisors (see below), whose sum is σ = 1209755928069144. Its totient is φ = 208130052140864.

The previous prime is 520325130352231. The next prime is 520325130352283. The reversal of 520325130352240 is 42253031523025.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 520325130352240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3252032064622 + ... + 3252032064781.

Almost surely, 2^{520325130352240} is an apocalyptic number.

It is an amenable number.

520325130352240 is an abundant number, since it is smaller than the sum of its proper divisors (689430797716904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520325130352240 is a wasteful number, since it uses less digits than its factorization.

520325130352240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6504064129416 (or 6504064129410 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 37.

Adding to 520325130352240 its reverse (42253031523025), we get a palindrome (562578161875265).

The spelling of 520325130352240 in words is "five hundred twenty trillion, three hundred twenty-five billion, one hundred thirty million, three hundred fifty-two thousand, two hundred forty".