511305030 has 24 divisors (see below), whose sum is σ = 1329393312. Its totient is φ = 136347984.

The previous prime is 511305023. The next prime is 511305037. The reversal of 511305030 is 30503115.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (511305023) and next prime (511305037).

It is a super-3 number, since 3×511305030³ (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 (18).

It is a junction number, because it is equal to n+sod(n) for n = 511304994 and 511305012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511305037) 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 11 ways as a sum of consecutive naturals, for example, 2840494 + ... + 2840673.

It is an arithmetic number, because the mean of its divisors is an integer number (55391388).

Almost surely, 2^511305030 is an apocalyptic number.

511305030 is an abundant number, since it is smaller than the sum of its proper divisors (818088282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

511305030 is a wasteful number, since it uses less digits than its factorization.

511305030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5681180 (or 5681177 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 511305030 is about 22612.0549707451. The cubic root of 511305030 is about 799.6378725627.

Adding to 511305030 its reverse (30503115), we get a palindrome (541808145).

The spelling of 511305030 in words is "five hundred eleven million, three hundred five thousand, thirty".