513402504652 has 48 divisors (see below), whose sum is σ = 911210428800. Its totient is φ = 253074856320.

The previous prime is 513402504617. The next prime is 513402504697. The reversal of 513402504652 is 256405204315.

It is a super-2 number, since 2×513402504652² (a number of 24 digits) contains 22 as substring.

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 in 15 ways as a sum of consecutive naturals, for example, 326799027 + ... + 326800597.

It is an arithmetic number, because the mean of its divisors is an integer number (18983550600).

Almost surely, 2^513402504652 is an apocalyptic number.

It is an amenable number.

513402504652 is a deficient number, since it is larger than the sum of its proper divisors (397807924148).

513402504652 is a wasteful number, since it uses less digits than its factorization.

513402504652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3766 (or 3764 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 513402504652 its reverse (256405204315), we get a palindrome (769807708967).

The spelling of 513402504652 in words is "five hundred thirteen billion, four hundred two million, five hundred four thousand, six hundred fifty-two".