2545345277 has 2 divisors, whose sum is σ = 2545345278. Its totient is φ = 2545345276.

The previous prime is 2545345259. The next prime is 2545345333. The reversal of 2545345277 is 7725435452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1493899801 + 1051445476 = 38651^2 + 32426^2 .

It is a cyclic number.

It is not a de Polignac number, because 2545345277 - 2¹² = 2545341181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2545345217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272672638 + 1272672639.

It is an arithmetic number, because the mean of its divisors is an integer number (1272672639).

Almost surely, 2^2545345277 is an apocalyptic number.

It is an amenable number.

2545345277 is a deficient number, since it is larger than the sum of its proper divisors (1).

2545345277 is an equidigital number, since it uses as much as digits as its factorization.

2545345277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1176000, while the sum is 44.

The square root of 2545345277 is about 50451.4150148437. The cubic root of 2545345277 is about 1365.3654246668.

The spelling of 2545345277 in words is "two billion, five hundred forty-five million, three hundred forty-five thousand, two hundred seventy-seven".