513916994 has 16 divisors (see below), whose sum is σ = 795798432. Its totient is φ = 248756928.

The previous prime is 513916937. The next prime is 513917017. The reversal of 513916994 is 499619315.

It is a happy number.

It is a super-2 number, since 2×513916994² = 528221353443992072, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16724 + ... + 36159.

It is an arithmetic number, because the mean of its divisors is an integer number (49737402).

Almost surely, 2^513916994 is an apocalyptic number.

513916994 is a deficient number, since it is larger than the sum of its proper divisors (281881438).

513916994 is a wasteful number, since it uses less digits than its factorization.

513916994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53041.

The product of its digits is 262440, while the sum is 47.

The square root of 513916994 is about 22669.7374047429. The cubic root of 513916994 is about 800.9971908715.

It can be divided in two parts, 51391 and 6994, that added together give a palindrome (58385).

The spelling of 513916994 in words is "five hundred thirteen million, nine hundred sixteen thousand, nine hundred ninety-four".