2575549993 has 2 divisors, whose sum is σ = 2575549994. Its totient is φ = 2575549992.

The previous prime is 2575549981. The next prime is 2575550017. The reversal of 2575549993 is 3999455752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2201204889 + 374345104 = 46917^2 + 19348^2 .

It is a cyclic number.

It is not a de Polignac number, because 2575549993 - 2⁵ = 2575549961 is a prime.

It is not a weakly prime, because it can be changed into another prime (2575549903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1287774996 + 1287774997.

It is an arithmetic number, because the mean of its divisors is an integer number (1287774997).

Almost surely, 2^2575549993 is an apocalyptic number.

It is an amenable number.

2575549993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2575549993 is an equidigital number, since it uses as much as digits as its factorization.

2575549993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15309000, while the sum is 58.

The square root of 2575549993 is about 50749.8767781755. The cubic root of 2575549993 is about 1370.7449716035.

The spelling of 2575549993 in words is "two billion, five hundred seventy-five million, five hundred forty-nine thousand, nine hundred ninety-three".