520242125 has 16 divisors (see below), whose sum is σ = 699207600. Its totient is φ = 384177600.

The previous prime is 520242101. The next prime is 520242161. The reversal of 520242125 is 521242025.

It can be written as a sum of positive squares in 8 ways, for example, as 395651881 + 124590244 = 19891^2 + 11162^2 .

It is not a de Polignac number, because 520242125 - 2⁶ = 520242061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 520242125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158450 + ... + 161699.

It is an arithmetic number, because the mean of its divisors is an integer number (43700475).

Almost surely, 2^520242125 is an apocalyptic number.

It is an amenable number.

520242125 is a deficient number, since it is larger than the sum of its proper divisors (178965475).

520242125 is a wasteful number, since it uses less digits than its factorization.

520242125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320177 (or 320167 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 520242125 is about 22808.8168259557. The cubic root of 520242125 is about 804.2699423800.

The spelling of 520242125 in words is "five hundred twenty million, two hundred forty-two thousand, one hundred twenty-five".