511375 has 8 divisors (see below), whose sum is σ = 638352. Its totient is φ = 409000.

The previous prime is 511361. The next prime is 511387. The reversal of 511375 is 573115.

It is a de Polignac number, because none of the positive numbers 2^k-511375 is a prime.

It is an Ulam number.

It is a Duffinian number.

511375 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1921 + ... + 2170.

It is an arithmetic number, because the mean of its divisors is an integer number (79794).

2⁵¹¹³⁷⁵ is an apocalyptic number.

511375 is a deficient number, since it is larger than the sum of its proper divisors (126977).

511375 is an equidigital number, since it uses as much as digits as its factorization.

511375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4106 (or 4096 counting only the distinct ones).

The product of its digits is 525, while the sum is 22.

The square root of 511375 is about 715.1048874116. The cubic root of 511375 is about 79.9674346622.

It can be divided in two parts, 51 and 1375, that multiplied together give a triangular number (70125 = T₃₇₄).

The spelling of 511375 in words is "five hundred eleven thousand, three hundred seventy-five".