2521343061 has 6 divisors (see below), whose sum is σ = 3641939990. Its totient is φ = 1680895368.

The previous prime is 2521343051. The next prime is 2521343081. The reversal of 2521343061 is 1603431252.

It can be written as a sum of positive squares in only one way, i.e., 1346156100 + 1175186961 = 36690^2 + 34281^2 .

It is not a de Polignac number, because 2521343061 - 2⁵ = 2521343029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521343051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 140074606 + ... + 140074623.

Almost surely, 2^2521343061 is an apocalyptic number.

It is an amenable number.

2521343061 is a deficient number, since it is larger than the sum of its proper divisors (1120596929).

2521343061 is a wasteful number, since it uses less digits than its factorization.

2521343061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280149235 (or 280149232 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2521343061 is about 50212.9770178985. The cubic root of 2521343061 is about 1361.0601345078.

The spelling of 2521343061 in words is "two billion, five hundred twenty-one million, three hundred forty-three thousand, sixty-one".