513646248 has 16 divisors (see below), whose sum is σ = 1284115680. Its totient is φ = 171215408.

The previous prime is 513646219. The next prime is 513646249. The reversal of 513646248 is 842646315.

It is not an unprimeable number, because it can be changed into a prime (513646249) by changing a digit.

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, 10700940 + ... + 10700987.

It is an arithmetic number, because the mean of its divisors is an integer number (80257230).

Almost surely, 2^513646248 is an apocalyptic number.

It is an amenable number.

513646248 is an abundant number, since it is smaller than the sum of its proper divisors (770469432).

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

513646248 is a wasteful number, since it uses less digits than its factorization.

513646248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21401936 (or 21401932 counting only the distinct ones).

The product of its digits is 138240, while the sum is 39.

The square root of 513646248 is about 22663.7650887932. The cubic root of 513646248 is about 800.8565035083.

The spelling of 513646248 in words is "five hundred thirteen million, six hundred forty-six thousand, two hundred forty-eight".