2511256512 has 28 divisors (see below), whose sum is σ = 6644366696. Its totient is φ = 837085440.

The previous prime is 2511256499. The next prime is 2511256513. The reversal of 2511256512 is 2156521152.

It is a super-2 number, since 2×2511256512² = 12612818538124812288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2511256512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2511256513) 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 3 ways as a sum of consecutive naturals, for example, 6539539 + ... + 6539922.

Almost surely, 2^2511256512 is an apocalyptic number.

It is an amenable number.

2511256512 is an abundant number, since it is smaller than the sum of its proper divisors (4133110184).

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

2511256512 is a wasteful number, since it uses less digits than its factorization.

2511256512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13079476 (or 13079466 counting only the distinct ones).

The product of its digits is 6000, while the sum is 30.

The square root of 2511256512 is about 50112.4386953978. The cubic root of 2511256512 is about 1359.2427502977.

Adding to 2511256512 its reverse (2156521152), we get a palindrome (4667777664).

The spelling of 2511256512 in words is "two billion, five hundred eleven million, two hundred fifty-six thousand, five hundred twelve".