513504043000 has 64 divisors (see below), whose sum is σ = 1294030221120. Its totient is φ = 189601488000.

The previous prime is 513504042929. The next prime is 513504043033. The reversal of 513504043000 is 340405315.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19737156 + ... + 19763155.

It is an arithmetic number, because the mean of its divisors is an integer number (20219222205).

Almost surely, 2^513504043000 is an apocalyptic number.

513504043000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

513504043000 is an abundant number, since it is smaller than the sum of its proper divisors (780526178120).

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

513504043000 is a wasteful number, since it uses less digits than its factorization.

513504043000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39500345 (or 39500331 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 513504043000 its reverse (340405315), we get a palindrome (513844448315).

The spelling of 513504043000 in words is "five hundred thirteen billion, five hundred four million, forty-three thousand".