513752872 has 16 divisors (see below), whose sum is σ = 963604800. Its totient is φ = 256791600.

The previous prime is 513752867. The next prime is 513752873. The reversal of 513752872 is 278257315.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (513752873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20497 + ... + 38047.

It is an arithmetic number, because the mean of its divisors is an integer number (60225300).

Almost surely, 2^513752872 is an apocalyptic number.

It is an amenable number.

513752872 is a deficient number, since it is larger than the sum of its proper divisors (449851928).

513752872 is a wasteful number, since it uses less digits than its factorization.

513752872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21216 (or 21212 counting only the distinct ones).

The product of its digits is 117600, while the sum is 40.

The square root of 513752872 is about 22666.1172678516. The cubic root of 513752872 is about 800.9119142871.

The spelling of 513752872 in words is "five hundred thirteen million, seven hundred fifty-two thousand, eight hundred seventy-two".