2543153993 has 2 divisors, whose sum is σ = 2543153994. Its totient is φ = 2543153992.

The previous prime is 2543153969. The next prime is 2543154007. The reversal of 2543153993 is 3993513452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1349313289 + 1193840704 = 36733^2 + 34552^2 .

It is a cyclic number.

It is not a de Polignac number, because 2543153993 - 2¹⁴ = 2543137609 is a prime.

It is a super-2 number, since 2×2543153993² = 12935264464223688098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2543153593) 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, 1271576996 + 1271576997.

It is an arithmetic number, because the mean of its divisors is an integer number (1271576997).

Almost surely, 2^2543153993 is an apocalyptic number.

It is an amenable number.

2543153993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2543153993 is an equidigital number, since it uses as much as digits as its factorization.

2543153993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 437400, while the sum is 44.

The square root of 2543153993 is about 50429.6935644071. The cubic root of 2543153993 is about 1364.9734984814.

The spelling of 2543153993 in words is "two billion, five hundred forty-three million, one hundred fifty-three thousand, nine hundred ninety-three".