511325163 has 32 divisors (see below), whose sum is σ = 780331520. Its totient is φ = 330674400.

The previous prime is 511325161. The next prime is 511325179. The reversal of 511325163 is 361523115.

It is not a de Polignac number, because 511325163 - 2¹ = 511325161 is a prime.

It is a super-3 number, since 3×511325163³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (511325161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 485988 + ... + 487038.

It is an arithmetic number, because the mean of its divisors is an integer number (24385360).

Almost surely, 2^511325163 is an apocalyptic number.

511325163 is a deficient number, since it is larger than the sum of its proper divisors (269006357).

511325163 is a wasteful number, since it uses less digits than its factorization.

511325163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1584 (or 1578 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 511325163 is about 22612.5001492537. The cubic root of 511325163 is about 799.6483678620.

Adding to 511325163 its reverse (361523115), we get a palindrome (872848278).

It can be divided in two parts, 5113 and 25163, that added together give a square (30276 = 174²).

The spelling of 511325163 in words is "five hundred eleven million, three hundred twenty-five thousand, one hundred sixty-three".