513788276 has 6 divisors (see below), whose sum is σ = 899129490. Its totient is φ = 256894136.

The previous prime is 513788267. The next prime is 513788311. The reversal of 513788276 is 672887315.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 269616400 + 244171876 = 16420^2 + 15626^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 513788276.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64223531 + ... + 64223538.

It is an arithmetic number, because the mean of its divisors is an integer number (149854915).

Almost surely, 2^513788276 is an apocalyptic number.

It is an amenable number.

513788276 is a deficient number, since it is larger than the sum of its proper divisors (385341214).

513788276 is a wasteful number, since it uses less digits than its factorization.

513788276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128447073 (or 128447071 counting only the distinct ones).

The product of its digits is 564480, while the sum is 47.

The square root of 513788276 is about 22666.8982439151. The cubic root of 513788276 is about 800.9303114813.

The spelling of 513788276 in words is "five hundred thirteen million, seven hundred eighty-eight thousand, two hundred seventy-six".