513431152025524 has 6 divisors (see below), whose sum is σ = 898504516044674. Its totient is φ = 256715576012760.

The previous prime is 513431152025417. The next prime is 513431152025543. The reversal of 513431152025524 is 425520251134315.

It can be written as a sum of positive squares in only one way, i.e., 310955839923600 + 202475312101924 = 17633940^2 + 14229382^2 .

It is a super-2 number, since 2×513431152025524² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64178894003187 + ... + 64178894003194.

Almost surely, 2^{513431152025524} is an apocalyptic number.

It is an amenable number.

513431152025524 is a deficient number, since it is larger than the sum of its proper divisors (385073364019150).

513431152025524 is a wasteful number, since it uses less digits than its factorization.

513431152025524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128357788006385 (or 128357788006383 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 43.

The spelling of 513431152025524 in words is "five hundred thirteen trillion, four hundred thirty-one billion, one hundred fifty-two million, twenty-five thousand, five hundred twenty-four".