2521236004 has 36 divisors (see below), whose sum is σ = 5172980736. Its totient is φ = 1072011024.

The previous prime is 2521235947. The next prime is 2521236013. The reversal of 2521236004 is 4006321252.

It is a self number, because there is not a number n which added to its sum of digits gives 2521236004.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 25752 + ... + 75535.

Almost surely, 2^2521236004 is an apocalyptic number.

It is an amenable number.

2521236004 is an abundant number, since it is smaller than the sum of its proper divisors (2651744732).

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

2521236004 is a wasteful number, since it uses less digits than its factorization.

2521236004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101432 (or 101423 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2521236004 is about 50211.9109773767. The cubic root of 2521236004 is about 1361.0408705582.

Adding to 2521236004 its reverse (4006321252), we get a palindrome (6527557256).

It can be divided in two parts, 25212 and 36004, that added together give a palindrome (61216).

The spelling of 2521236004 in words is "two billion, five hundred twenty-one million, two hundred thirty-six thousand, four".