2521133004 has 96 divisors (see below), whose sum is σ = 6461163520. Its totient is φ = 760451328.

The previous prime is 2521133003. The next prime is 2521133023. The reversal of 2521133004 is 4003311252.

It is a super-2 number, since 2×2521133004² = 12712223247716128032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2521133003) 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 31 ways as a sum of consecutive naturals, for example, 1934217 + ... + 1935519.

Almost surely, 2^2521133004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2521133004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3230581760).

2521133004 is an abundant number, since it is smaller than the sum of its proper divisors (3940030516).

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

2521133004 is a wasteful number, since it uses less digits than its factorization.

2521133004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1559 (or 1557 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2521133004 is about 50210.8853138440. The cubic root of 2521133004 is about 1361.0223361147.

Adding to 2521133004 its reverse (4003311252), we get a palindrome (6524444256).

The spelling of 2521133004 in words is "two billion, five hundred twenty-one million, one hundred thirty-three thousand, four".