520344532 has 6 divisors (see below), whose sum is σ = 910602938. Its totient is φ = 260172264.

The previous prime is 520344529. The next prime is 520344533. The reversal of 520344532 is 235443025.

It can be written as a sum of positive squares in only one way, i.e., 500148496 + 20196036 = 22364^2 + 4494^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 520344532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520344533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65043063 + ... + 65043070.

Almost surely, 2^520344532 is an apocalyptic number.

It is an amenable number.

520344532 is a deficient number, since it is larger than the sum of its proper divisors (390258406).

520344532 is a wasteful number, since it uses less digits than its factorization.

520344532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130086137 (or 130086135 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 520344532 is about 22811.0616149271. The cubic root of 520344532 is about 804.3227110585.

Adding to 520344532 its reverse (235443025), we get a palindrome (755787557).

The spelling of 520344532 in words is "five hundred twenty million, three hundred forty-four thousand, five hundred thirty-two".