2521141643 has 16 divisors (see below), whose sum is σ = 2608066560. Its totient is φ = 2435632416.

The previous prime is 2521141607. The next prime is 2521141657. The reversal of 2521141643 is 3461411252.

It is not a de Polignac number, because 2521141643 - 2¹⁰ = 2521140619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2521141603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2779196 + ... + 2780102.

It is an arithmetic number, because the mean of its divisors is an integer number (163004160).

Almost surely, 2^2521141643 is an apocalyptic number.

2521141643 is a deficient number, since it is larger than the sum of its proper divisors (86924917).

2521141643 is a wasteful number, since it uses less digits than its factorization.

2521141643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586.

The product of its digits is 5760, while the sum is 29.

The square root of 2521141643 is about 50210.9713409330. The cubic root of 2521141643 is about 1361.0238906881.

Adding to 2521141643 its reverse (3461411252), we get a palindrome (5982552895).

The spelling of 2521141643 in words is "two billion, five hundred twenty-one million, one hundred forty-one thousand, six hundred forty-three".