1625175049 has 2 divisors, whose sum is σ = 1625175050. Its totient is φ = 1625175048.

The previous prime is 1625175043. The next prime is 1625175077. The reversal of 1625175049 is 9405715261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 833765625 + 791409424 = 28875^2 + 28132^2 .

It is a cyclic number.

It is not a de Polignac number, because 1625175049 - 2¹¹ = 1625173001 is a prime.

It is not a weakly prime, because it can be changed into another prime (1625175043) 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, 812587524 + 812587525.

It is an arithmetic number, because the mean of its divisors is an integer number (812587525).

Almost surely, 2^1625175049 is an apocalyptic number.

It is an amenable number.

1625175049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1625175049 is an equidigital number, since it uses as much as digits as its factorization.

1625175049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 1625175049 is about 40313.4598986492. The cubic root of 1625175049 is about 1175.7095576047.

The spelling of 1625175049 in words is "one billion, six hundred twenty-five million, one hundred seventy-five thousand, forty-nine".