513656426 has 8 divisors (see below), whose sum is σ = 772518720. Its totient is φ = 256150188.

The previous prime is 513656399. The next prime is 513656441. The reversal of 513656426 is 624656315.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 513656426.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338066 + ... + 339581.

It is an arithmetic number, because the mean of its divisors is an integer number (96564840).

Almost surely, 2^513656426 is an apocalyptic number.

513656426 is a deficient number, since it is larger than the sum of its proper divisors (258862294).

513656426 is a wasteful number, since it uses less digits than its factorization.

513656426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678028.

The product of its digits is 129600, while the sum is 38.

The square root of 513656426 is about 22663.9896311307. The cubic root of 513656426 is about 800.8617931823.

The spelling of 513656426 in words is "five hundred thirteen million, six hundred fifty-six thousand, four hundred twenty-six".