520523124 has 36 divisors (see below), whose sum is σ = 1335009312. Its totient is φ = 157733840.

The previous prime is 520523111. The next prime is 520523147. The reversal of 520523124 is 421325025.

It is a junction number, because it is equal to n+sod(n) for n = 520523094 and 520523103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177792 + ... + 180695.

It is an arithmetic number, because the mean of its divisors is an integer number (37083592).

Almost surely, 2^520523124 is an apocalyptic number.

It is an amenable number.

520523124 is an abundant number, since it is smaller than the sum of its proper divisors (814486188).

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

520523124 is a wasteful number, since it uses less digits than its factorization.

520523124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358516 (or 358503 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 520523124 is about 22814.9758711247. The cubic root of 520523124 is about 804.4147200782.

Adding to 520523124 its reverse (421325025), we get a palindrome (941848149).

The spelling of 520523124 in words is "five hundred twenty million, five hundred twenty-three thousand, one hundred twenty-four".