511333323252 has 48 divisors (see below), whose sum is σ = 1199442226752. Its totient is φ = 169542074880.

The previous prime is 511333323247. The next prime is 511333323307. The reversal of 511333323252 is 252323333115.

It is a happy number.

It is a super-2 number, since 2×511333323252² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1841427 + ... + 2100837.

It is an arithmetic number, because the mean of its divisors is an integer number (24988379724).

Almost surely, 2^511333323252 is an apocalyptic number.

It is an amenable number.

511333323252 is an abundant number, since it is smaller than the sum of its proper divisors (688108903500).

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

511333323252 is a wasteful number, since it uses less digits than its factorization.

511333323252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260288 (or 260286 counting only the distinct ones).

The product of its digits is 48600, while the sum is 33.

Adding to 511333323252 its reverse (252323333115), we get a palindrome (763656656367).

The spelling of 511333323252 in words is "five hundred eleven billion, three hundred thirty-three million, three hundred twenty-three thousand, two hundred fifty-two".