2549085457 has 2 divisors, whose sum is σ = 2549085458. Its totient is φ = 2549085456.

The previous prime is 2549085433. The next prime is 2549085463. The reversal of 2549085457 is 7545809452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1453210641 + 1095874816 = 38121^2 + 33104^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2549085457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2549085457.

It is not a weakly prime, because it can be changed into another prime (2549085557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1274542728 + 1274542729.

It is an arithmetic number, because the mean of its divisors is an integer number (1274542729).

Almost surely, 2^2549085457 is an apocalyptic number.

It is an amenable number.

2549085457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2549085457 is an equidigital number, since it uses as much as digits as its factorization.

2549085457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016000, while the sum is 49.

The square root of 2549085457 is about 50488.4685547106. The cubic root of 2549085457 is about 1366.0338622313.

The spelling of 2549085457 in words is "two billion, five hundred forty-nine million, eighty-five thousand, four hundred fifty-seven".