2521340424 has 48 divisors (see below), whose sum is σ = 6853336620. Its totient is φ = 837406080.

The previous prime is 2521340377. The next prime is 2521340429. The reversal of 2521340424 is 4240431252.

2521340424 is a `hidden beast` number, since 25 + 213 + 4 + 0 + 424 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2519036100 + 2304324 = 50190^2 + 1518^2 .

It is not an unprimeable number, because it can be changed into a prime (2521340429) 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 in 11 ways as a sum of consecutive naturals, for example, 43267 + ... + 83154.

Almost surely, 2^2521340424 is an apocalyptic number.

2521340424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2521340424 is an abundant number, since it is smaller than the sum of its proper divisors (4331996196).

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

2521340424 is a wasteful number, since it uses less digits than its factorization.

2521340424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126710 (or 126703 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 2521340424 is about 50212.9507597393. The cubic root of 2521340424 is about 1361.0596600098.

Adding to 2521340424 its reverse (4240431252), we get a palindrome (6761771676).

The spelling of 2521340424 in words is "two billion, five hundred twenty-one million, three hundred forty thousand, four hundred twenty-four".