513287655 has 16 divisors (see below), whose sum is σ = 824070240. Its totient is φ = 272816768.

The previous prime is 513287609. The next prime is 513287683. The reversal of 513287655 is 556782315.

It is a cyclic number.

It is not a de Polignac number, because 513287655 - 2⁶ = 513287591 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54000 + ... + 62789.

It is an arithmetic number, because the mean of its divisors is an integer number (51504390).

Almost surely, 2^513287655 is an apocalyptic number.

513287655 is a deficient number, since it is larger than the sum of its proper divisors (310782585).

513287655 is a wasteful number, since it uses less digits than its factorization.

513287655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117090.

The product of its digits is 252000, while the sum is 42.

The square root of 513287655 is about 22655.8525551346. The cubic root of 513287655 is about 800.6700922097.

The spelling of 513287655 in words is "five hundred thirteen million, two hundred eighty-seven thousand, six hundred fifty-five".