2521431434 has 24 divisors (see below), whose sum is σ = 3920706720. Its totient is φ = 1215803888.

The previous prime is 2521431427. The next prime is 2521431439. The reversal of 2521431434 is 4341341252.

It is a junction number, because it is equal to n+sod(n) for n = 2521431397 and 2521431406.

It is not an unprimeable number, because it can be changed into a prime (2521431439) 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 11 ways as a sum of consecutive naturals, for example, 327659 + ... + 335265.

It is an arithmetic number, because the mean of its divisors is an integer number (163362780).

Almost surely, 2^2521431434 is an apocalyptic number.

2521431434 is a deficient number, since it is larger than the sum of its proper divisors (1399275286).

2521431434 is an equidigital number, since it uses as much as digits as its factorization.

2521431434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7774 (or 7721 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 2521431434 is about 50213.8569918703. The cubic root of 2521431434 is about 1361.0760360279.

Adding to 2521431434 its reverse (4341341252), we get a palindrome (6862772686).

The spelling of 2521431434 in words is "two billion, five hundred twenty-one million, four hundred thirty-one thousand, four hundred thirty-four".