513255511 has 8 divisors (see below), whose sum is σ = 539662464. Its totient is φ = 487189560.

The previous prime is 513255487. The next prime is 513255553. The reversal of 513255511 is 115552315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513255511 is a prime.

It is a super-2 number, since 2×513255511² = 526862439143742242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 513255511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513255581) 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 7 ways as a sum of consecutive naturals, for example, 82161 + ... + 88186.

It is an arithmetic number, because the mean of its divisors is an integer number (67457808).

Almost surely, 2^513255511 is an apocalyptic number.

513255511 is a deficient number, since it is larger than the sum of its proper divisors (26406953).

513255511 is a wasteful number, since it uses less digits than its factorization.

513255511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170501.

The product of its digits is 3750, while the sum is 28.

The square root of 513255511 is about 22655.1431467559. The cubic root of 513255511 is about 800.6533782050.

The spelling of 513255511 in words is "five hundred thirteen million, two hundred fifty-five thousand, five hundred eleven".