2511993512 has 32 divisors (see below), whose sum is σ = 5484412800. Its totient is φ = 1056254784.

The previous prime is 2511993511. The next prime is 2511993527. The reversal of 2511993512 is 2153991152.

It is a super-2 number, since 2×2511993512² = 12620222808660188288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2511993511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420212 + ... + 426147.

It is an arithmetic number, because the mean of its divisors is an integer number (171387900).

Almost surely, 2^2511993512 is an apocalyptic number.

It is an amenable number.

2511993512 is an abundant number, since it is smaller than the sum of its proper divisors (2972419288).

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

2511993512 is a wasteful number, since it uses less digits than its factorization.

2511993512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846425 (or 846421 counting only the distinct ones).

The product of its digits is 24300, while the sum is 38.

The square root of 2511993512 is about 50119.7916196785. The cubic root of 2511993512 is about 1359.3757068368.

The spelling of 2511993512 in words is "two billion, five hundred eleven million, nine hundred ninety-three thousand, five hundred twelve".