2531052409 has 2 divisors, whose sum is σ = 2531052410. Its totient is φ = 2531052408.

The previous prime is 2531052397. The next prime is 2531052431. The reversal of 2531052409 is 9042501352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2528581225 + 2471184 = 50285^2 + 1572^2 .

It is a cyclic number.

It is not a de Polignac number, because 2531052409 - 2⁷ = 2531052281 is a prime.

It is not a weakly prime, because it can be changed into another prime (2531052479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1265526204 + 1265526205.

It is an arithmetic number, because the mean of its divisors is an integer number (1265526205).

Almost surely, 2^2531052409 is an apocalyptic number.

It is an amenable number.

2531052409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2531052409 is an equidigital number, since it uses as much as digits as its factorization.

2531052409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 2531052409 is about 50309.5657802768. The cubic root of 2531052409 is about 1362.8049823013.

The spelling of 2531052409 in words is "two billion, five hundred thirty-one million, fifty-two thousand, four hundred nine".