520021130325 has 24 divisors (see below), whose sum is σ = 905019232800. Its totient is φ = 262747517760.

The previous prime is 520021130311. The next prime is 520021130341. The reversal of 520021130325 is 523031120025.

It is a happy number.

It is not a de Polignac number, because 520021130325 - 2⁷ = 520021130197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 520021130295 and 520021130304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 182462130 + ... + 182464979.

It is an arithmetic number, because the mean of its divisors is an integer number (37709134700).

Almost surely, 2^520021130325 is an apocalyptic number.

It is an amenable number.

520021130325 is a deficient number, since it is larger than the sum of its proper divisors (384998102475).

520021130325 is a wasteful number, since it uses less digits than its factorization.

520021130325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364927141 (or 364927136 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The spelling of 520021130325 in words is "five hundred twenty billion, twenty-one million, one hundred thirty thousand, three hundred twenty-five".