2521322943 has 32 divisors (see below), whose sum is σ = 3556058112. Its totient is φ = 1587331200.

The previous prime is 2521322939. The next prime is 2521322981. The reversal of 2521322943 is 3492231252.

It is not a de Polignac number, because 2521322943 - 2² = 2521322939 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521322143) 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 31 ways as a sum of consecutive naturals, for example, 453088 + ... + 458618.

It is an arithmetic number, because the mean of its divisors is an integer number (111126816).

Almost surely, 2^2521322943 is an apocalyptic number.

2521322943 is a deficient number, since it is larger than the sum of its proper divisors (1034735169).

2521322943 is a wasteful number, since it uses less digits than its factorization.

2521322943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5695.

The product of its digits is 25920, while the sum is 33.

The square root of 2521322943 is about 50212.7766907985. The cubic root of 2521322943 is about 1361.0565144953.

The spelling of 2521322943 in words is "two billion, five hundred twenty-one million, three hundred twenty-two thousand, nine hundred forty-three".