511055 has 8 divisors (see below), whose sum is σ = 627792. Its totient is φ = 399168.

The previous prime is 511039. The next prime is 511057. The reversal of 511055 is 550115.

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

It is a cyclic number.

It is not a de Polignac number, because 511055 - 2⁴ = 511039 is a prime.

It is a super-2 number, since 2×511055² = 522354426050, 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 (511057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 974 + ... + 1403.

It is an arithmetic number, because the mean of its divisors is an integer number (78474).

2⁵¹¹⁰⁵⁵ is an apocalyptic number.

511055 is a deficient number, since it is larger than the sum of its proper divisors (116737).

511055 is a wasteful number, since it uses less digits than its factorization.

511055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425.

The product of its (nonzero) digits is 125, while the sum is 17.

The square root of 511055 is about 714.8811089965. The cubic root of 511055 is about 79.9507509378.

Subtracting 511055 from its reverse (550115), we obtain a triangular number (39060 = T₂₇₉).

The spelling of 511055 in words is "five hundred eleven thousand, fifty-five".