520225123 has 4 divisors (see below), whose sum is σ = 567518328. Its totient is φ = 472931920.

The previous prime is 520225117. The next prime is 520225127. The reversal of 520225123 is 321522025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 520225123 - 2⁵ = 520225091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 520225094 and 520225103.

It is not an unprimeable number, because it can be changed into a prime (520225127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23646586 + ... + 23646607.

It is an arithmetic number, because the mean of its divisors is an integer number (141879582).

Almost surely, 2^520225123 is an apocalyptic number.

520225123 is a deficient number, since it is larger than the sum of its proper divisors (47293205).

520225123 is a wasteful number, since it uses less digits than its factorization.

520225123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47293204.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 520225123 is about 22808.4441161601. Note that the first 3 decimals coincide. The cubic root of 520225123 is about 804.2611808529.

Adding to 520225123 its reverse (321522025), we get a palindrome (841747148).

The spelling of 520225123 in words is "five hundred twenty million, two hundred twenty-five thousand, one hundred twenty-three".