2545243013 has 2 divisors, whose sum is σ = 2545243014. Its totient is φ = 2545243012.

The previous prime is 2545243007. The next prime is 2545243027. The reversal of 2545243013 is 3103425452.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2207308324 + 337934689 = 46982^2 + 18383^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2545243013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2545243073) 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, 1272621506 + 1272621507.

It is an arithmetic number, because the mean of its divisors is an integer number (1272621507).

Almost surely, 2^2545243013 is an apocalyptic number.

It is an amenable number.

2545243013 is a deficient number, since it is larger than the sum of its proper divisors (1).

2545243013 is an equidigital number, since it uses as much as digits as its factorization.

2545243013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 2545243013 is about 50450.4015147551. The cubic root of 2545243013 is about 1365.3471390534.

Adding to 2545243013 its reverse (3103425452), we get a palindrome (5648668465).

The spelling of 2545243013 in words is "two billion, five hundred forty-five million, two hundred forty-three thousand, thirteen".