513225361424 has 40 divisors (see below), whose sum is σ = 1031577289560. Its totient is φ = 247062007808.

The previous prime is 513225361421. The next prime is 513225361433. The reversal of 513225361424 is 424163522315.

It can be written as a sum of positive squares in 4 ways, for example, as 203942560000 + 309282801424 = 451600^2 + 556132^2 .

It is not an unprimeable number, because it can be changed into a prime (513225361421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1402907 + ... + 1730490.

It is an arithmetic number, because the mean of its divisors is an integer number (25789432239).

Almost surely, 2^513225361424 is an apocalyptic number.

It is an amenable number.

513225361424 is an abundant number, since it is smaller than the sum of its proper divisors (518351928136).

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

513225361424 is a wasteful number, since it uses less digits than its factorization.

513225361424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3133787 (or 3133781 counting only the distinct ones).

The product of its digits is 172800, while the sum is 38.

Adding to 513225361424 its reverse (424163522315), we get a palindrome (937388883739).

The spelling of 513225361424 in words is "five hundred thirteen billion, two hundred twenty-five million, three hundred sixty-one thousand, four hundred twenty-four".