2587255457 has 2 divisors, whose sum is σ = 2587255458. Its totient is φ = 2587255456.

The previous prime is 2587255409. The next prime is 2587255459. The reversal of 2587255457 is 7545527852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2571605521 + 15649936 = 50711^2 + 3956^2 .

It is a cyclic number.

It is not a de Polignac number, because 2587255457 - 2⁶ = 2587255393 is a prime.

Together with 2587255459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2587255459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1293627728 + 1293627729.

It is an arithmetic number, because the mean of its divisors is an integer number (1293627729).

Almost surely, 2^2587255457 is an apocalyptic number.

It is an amenable number.

2587255457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2587255457 is an equidigital number, since it uses as much as digits as its factorization.

2587255457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3920000, while the sum is 50.

The square root of 2587255457 is about 50865.0710900909. The cubic root of 2587255457 is about 1372.8184393440.

The spelling of 2587255457 in words is "two billion, five hundred eighty-seven million, two hundred fifty-five thousand, four hundred fifty-seven".