2523987121 has 2 divisors, whose sum is σ = 2523987122. Its totient is φ = 2523987120.

The previous prime is 2523987061. The next prime is 2523987143. The reversal of 2523987121 is 1217893252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2502000400 + 21986721 = 50020^2 + 4689^2 .

It is a cyclic number.

It is not a de Polignac number, because 2523987121 - 2¹⁹ = 2523462833 is a prime.

It is not a weakly prime, because it can be changed into another prime (2523988121) 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 as a sum of consecutive naturals, namely, 1261993560 + 1261993561.

It is an arithmetic number, because the mean of its divisors is an integer number (1261993561).

Almost surely, 2^2523987121 is an apocalyptic number.

It is an amenable number.

2523987121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2523987121 is an equidigital number, since it uses as much as digits as its factorization.

2523987121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 40.

The square root of 2523987121 is about 50239.2985719347. The cubic root of 2523987121 is about 1361.5357365111.

The spelling of 2523987121 in words is "two billion, five hundred twenty-three million, nine hundred eighty-seven thousand, one hundred twenty-one".