520413652 has 24 divisors (see below), whose sum is σ = 1005494112. Its totient is φ = 233700000.

The previous prime is 520413643. The next prime is 520413661. The reversal of 520413652 is 256314025.

It is an interprime number because it is at equal distance from previous prime (520413643) and next prime (520413661).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 520413652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67599 + ... + 74902.

It is an arithmetic number, because the mean of its divisors is an integer number (41895588).

Almost surely, 2^520413652 is an apocalyptic number.

It is an amenable number.

520413652 is a deficient number, since it is larger than the sum of its proper divisors (485080460).

520413652 is a wasteful number, since it uses less digits than its factorization.

520413652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142599 (or 142597 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 520413652 is about 22812.5766190494. The cubic root of 520413652 is about 804.3583235684.

Adding to 520413652 its reverse (256314025), we get a palindrome (776727677).

The spelling of 520413652 in words is "five hundred twenty million, four hundred thirteen thousand, six hundred fifty-two".