511480111 has 4 divisors (see below), whose sum is σ = 512768872. Its totient is φ = 510191352.

The previous prime is 511480103. The next prime is 511480153. The reversal of 511480111 is 111084115.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 511480111 - 2³ = 511480103 is a prime.

It is a super-2 number, since 2×511480111² = 523223807897144642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511483111) 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, 643785 + ... + 644578.

It is an arithmetic number, because the mean of its divisors is an integer number (128192218).

Almost surely, 2^511480111 is an apocalyptic number.

511480111 is a deficient number, since it is larger than the sum of its proper divisors (1288761).

511480111 is a wasteful number, since it uses less digits than its factorization.

511480111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288760.

The product of its (nonzero) digits is 160, while the sum is 22.

The square root of 511480111 is about 22615.9260478098. The cubic root of 511480111 is about 799.7291327782.

The spelling of 511480111 in words is "five hundred eleven million, four hundred eighty thousand, one hundred eleven".