513534452 has 6 divisors (see below), whose sum is σ = 898685298. Its totient is φ = 256767224.

The previous prime is 513534401. The next prime is 513534479. The reversal of 513534452 is 254435315.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 397842916 + 115691536 = 19946^2 + 10756^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64191803 + ... + 64191810.

It is an arithmetic number, because the mean of its divisors is an integer number (149780883).

Almost surely, 2^513534452 is an apocalyptic number.

It is an amenable number.

513534452 is a deficient number, since it is larger than the sum of its proper divisors (385150846).

513534452 is a wasteful number, since it uses less digits than its factorization.

513534452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128383617 (or 128383615 counting only the distinct ones).

The product of its digits is 36000, while the sum is 32.

The square root of 513534452 is about 22661.2985506127. The cubic root of 513534452 is about 800.7983966883.

Adding to 513534452 its reverse (254435315), we get a palindrome (767969767).

The spelling of 513534452 in words is "five hundred thirteen million, five hundred thirty-four thousand, four hundred fifty-two".