520125122 has 8 divisors (see below), whose sum is σ = 851113872. Its totient is φ = 236420500.

The previous prime is 520125091. The next prime is 520125131. The reversal of 520125122 is 221521025.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 520125094 and 520125103.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11821004 + ... + 11821047.

It is an arithmetic number, because the mean of its divisors is an integer number (106389234).

Almost surely, 2^520125122 is an apocalyptic number.

520125122 is a deficient number, since it is larger than the sum of its proper divisors (330988750).

520125122 is a wasteful number, since it uses less digits than its factorization.

520125122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23642064.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 520125122 is about 22806.2518183063. The cubic root of 520125122 is about 804.2096441413.

Adding to 520125122 its reverse (221521025), we get a palindrome (741646147).

The spelling of 520125122 in words is "five hundred twenty million, one hundred twenty-five thousand, one hundred twenty-two".