2530871393 has 2 divisors, whose sum is σ = 2530871394. Its totient is φ = 2530871392.

The previous prime is 2530871389. The next prime is 2530871429. The reversal of 2530871393 is 3931780352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2163459169 + 367412224 = 46513^2 + 19168^2 .

It is a cyclic number.

It is not a de Polignac number, because 2530871393 - 2² = 2530871389 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2530871393.

It is not a weakly prime, because it can be changed into another prime (2530871323) 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 as a sum of consecutive naturals, namely, 1265435696 + 1265435697.

It is an arithmetic number, because the mean of its divisors is an integer number (1265435697).

Almost surely, 2^2530871393 is an apocalyptic number.

It is an amenable number.

2530871393 is a deficient number, since it is larger than the sum of its proper divisors (1).

2530871393 is an equidigital number, since it uses as much as digits as its factorization.

2530871393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 2530871393 is about 50307.7667264211. The cubic root of 2530871393 is about 1362.7724931298.

The spelling of 2530871393 in words is "two billion, five hundred thirty million, eight hundred seventy-one thousand, three hundred ninety-three".