2511994 has 4 divisors (see below), whose sum is σ = 3767994. Its totient is φ = 1255996.

The previous prime is 2511983. The next prime is 2511997. The reversal of 2511994 is 4991152.

2511994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1656369 + 855625 = 1287^2 + 925^2 .

It is a super-2 number, since 2×2511994² = 12620227712072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2511997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627997 + ... + 628000.

2^2511994 is an apocalyptic number.

2511994 is a deficient number, since it is larger than the sum of its proper divisors (1256000).

2511994 is a wasteful number, since it uses less digits than its factorization.

2511994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255999.

The product of its digits is 3240, while the sum is 31.

The square root of 2511994 is about 1584.9271276623. The cubic root of 2511994 is about 135.9375794865.

The spelling of 2511994 in words is "two million, five hundred eleven thousand, nine hundred ninety-four".