2545345441 has 2 divisors, whose sum is σ = 2545345442. Its totient is φ = 2545345440.

The previous prime is 2545345433. The next prime is 2545345447. The reversal of 2545345441 is 1445435452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2432561041 + 112784400 = 49321^2 + 10620^2 .

It is a cyclic number.

It is not a de Polignac number, because 2545345441 - 2³ = 2545345433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2545345441.

It is not a weakly prime, because it can be changed into another prime (2545345447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272672720 + 1272672721.

It is an arithmetic number, because the mean of its divisors is an integer number (1272672721).

Almost surely, 2^2545345441 is an apocalyptic number.

It is an amenable number.

2545345441 is a deficient number, since it is larger than the sum of its proper divisors (1).

2545345441 is an equidigital number, since it uses as much as digits as its factorization.

2545345441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192000, while the sum is 37.

The square root of 2545345441 is about 50451.4166401698. The cubic root of 2545345441 is about 1365.3654539909.

The spelling of 2545345441 in words is "two billion, five hundred forty-five million, three hundred forty-five thousand, four hundred forty-one".