2521133140 has 12 divisors (see below), whose sum is σ = 5294379636. Its totient is φ = 1008453248.

The previous prime is 2521133101. The next prime is 2521133143. The reversal of 2521133140 is 413311252.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 440496144 + 2080636996 = 20988^2 + 45614^2 .

It is a super-2 number, since 2×2521133140² = 12712224619212519200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521133143) 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 3 ways as a sum of consecutive naturals, for example, 63028309 + ... + 63028348.

It is an arithmetic number, because the mean of its divisors is an integer number (441198303).

Almost surely, 2^2521133140 is an apocalyptic number.

2521133140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2521133140 is an abundant number, since it is smaller than the sum of its proper divisors (2773246496).

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

2521133140 is a wasteful number, since it uses less digits than its factorization.

2521133140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126056666 (or 126056664 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2521133140 is about 50210.8866681320. The cubic root of 2521133140 is about 1361.0223605877.

Adding to 2521133140 its reverse (413311252), we get a palindrome (2934444392).

The spelling of 2521133140 in words is "two billion, five hundred twenty-one million, one hundred thirty-three thousand, one hundred forty".