2529975949 has 2 divisors, whose sum is σ = 2529975950. Its totient is φ = 2529975948.

The previous prime is 2529975947. The next prime is 2529975961. The reversal of 2529975949 is 9495799252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2524359049 + 5616900 = 50243^2 + 2370^2 .

It is a cyclic number.

It is not a de Polignac number, because 2529975949 - 2¹ = 2529975947 is a prime.

Together with 2529975947, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2529975941) 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, 1264987974 + 1264987975.

It is an arithmetic number, because the mean of its divisors is an integer number (1264987975).

Almost surely, 2^2529975949 is an apocalyptic number.

It is an amenable number.

2529975949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2529975949 is an equidigital number, since it uses as much as digits as its factorization.

2529975949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18370800, while the sum is 61.

The square root of 2529975949 is about 50298.8662794700. The cubic root of 2529975949 is about 1362.6117539736.

The spelling of 2529975949 in words is "two billion, five hundred twenty-nine million, nine hundred seventy-five thousand, nine hundred forty-nine".