2512636 has 24 divisors (see below), whose sum is σ = 5290880. Its totient is φ = 1019952.

The previous prime is 2512597. The next prime is 2512637. The reversal of 2512636 is 6362152.

It is a self number, because there is not a number n which added to its sum of digits gives 2512636.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2512637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1830 + ... + 2893.

2^2512636 is an apocalyptic number.

It is an amenable number.

2512636 is an abundant number, since it is smaller than the sum of its proper divisors (2778244).

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

2512636 is a wasteful number, since it uses less digits than its factorization.

2512636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4753 (or 4751 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 2512636 is about 1585.1296476945. The cubic root of 2512636 is about 135.9491591973.

Adding to 2512636 its reverse (6362152), we get a palindrome (8874788).

The spelling of 2512636 in words is "two million, five hundred twelve thousand, six hundred thirty-six".