513424403 has 8 divisors (see below), whose sum is σ = 547851600. Its totient is φ = 479737728.

The previous prime is 513424399. The next prime is 513424411. The reversal of 513424403 is 304424315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 513424403 - 2² = 513424399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513424433) 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, 183698 + ... + 186471.

It is an arithmetic number, because the mean of its divisors is an integer number (68481450).

Almost surely, 2^513424403 is an apocalyptic number.

513424403 is a deficient number, since it is larger than the sum of its proper divisors (34427197).

513424403 is a wasteful number, since it uses less digits than its factorization.

513424403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370261.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 513424403 is about 22658.8702939930. The cubic root of 513424403 is about 800.7411896478.

Adding to 513424403 its reverse (304424315), we get a palindrome (817848718).

The spelling of 513424403 in words is "five hundred thirteen million, four hundred twenty-four thousand, four hundred three".