513205452 has 36 divisors (see below), whose sum is σ = 1373580936. Its totient is φ = 161005440.

The previous prime is 513205411. The next prime is 513205457. The reversal of 513205452 is 254502315.

It is a happy number.

513205452 is a `hidden beast` number, since 5 + 1 + 3 + 205 + 452 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (513205457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 418674 + ... + 419897.

It is an arithmetic number, because the mean of its divisors is an integer number (38155026).

Almost surely, 2^513205452 is an apocalyptic number.

It is an amenable number.

513205452 is an abundant number, since it is smaller than the sum of its proper divisors (860375484).

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

513205452 is a wasteful number, since it uses less digits than its factorization.

513205452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838598 (or 838593 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 513205452 is about 22654.0383154969. The cubic root of 513205452 is about 800.6273474986.

Adding to 513205452 its reverse (254502315), we get a palindrome (767707767).

The spelling of 513205452 in words is "five hundred thirteen million, two hundred five thousand, four hundred fifty-two".