520306452 has 18 divisors (see below), whose sum is σ = 1315219178. Its totient is φ = 173435472.

The previous prime is 520306411. The next prime is 520306463. The reversal of 520306452 is 254603025.

520306452 is a `hidden beast` number, since 5 + 203 + 0 + 6 + 452 = 666.

It can be written as a sum of positive squares in only one way, i.e., 379314576 + 140991876 = 19476^2 + 11874^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7226443 + ... + 7226514.

Almost surely, 2^520306452 is an apocalyptic number.

It is an amenable number.

520306452 is an abundant number, since it is smaller than the sum of its proper divisors (794912726).

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

520306452 is a wasteful number, since it uses less digits than its factorization.

520306452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14452967 (or 14452962 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 520306452 is about 22810.2269168897. The cubic root of 520306452 is about 804.3030898562.

Adding to 520306452 its reverse (254603025), we get a palindrome (774909477).

The spelling of 520306452 in words is "five hundred twenty million, three hundred six thousand, four hundred fifty-two".