2521143412 has 12 divisors (see below), whose sum is σ = 4412822596. Its totient is φ = 1260336960.

The previous prime is 2521143409. The next prime is 2521143419. The reversal of 2521143412 is 2143411252.

It can be written as a sum of positive squares in 2 ways, for example, as 2197359376 + 323784036 = 46876^2 + 17994^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521143419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33303 + ... + 78430.

Almost surely, 2^2521143412 is an apocalyptic number.

It is an amenable number.

2521143412 is a deficient number, since it is larger than the sum of its proper divisors (1891679184).

2521143412 is a wasteful number, since it uses less digits than its factorization.

2521143412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117378 (or 117376 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 2521143412 is about 50210.9889566019. The cubic root of 2521143412 is about 1361.0242090162.

Adding to 2521143412 its reverse (2143411252), we get a palindrome (4664554664).

The spelling of 2521143412 in words is "two billion, five hundred twenty-one million, one hundred forty-three thousand, four hundred twelve".