2555424857 has 2 divisors, whose sum is σ = 2555424858. Its totient is φ = 2555424856.

The previous prime is 2555424847. The next prime is 2555424923. The reversal of 2555424857 is 7584245552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2526469696 + 28955161 = 50264^2 + 5381^2 .

It is a cyclic number.

It is not a de Polignac number, because 2555424857 - 2⁴ = 2555424841 is a prime.

It is not a weakly prime, because it can be changed into another prime (2555424847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277712428 + 1277712429.

It is an arithmetic number, because the mean of its divisors is an integer number (1277712429).

Almost surely, 2^2555424857 is an apocalyptic number.

It is an amenable number.

2555424857 is a deficient number, since it is larger than the sum of its proper divisors (1).

2555424857 is an equidigital number, since it uses as much as digits as its factorization.

2555424857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2240000, while the sum is 47.

The square root of 2555424857 is about 50551.2102426836. The cubic root of 2555424857 is about 1367.1653355001.

The spelling of 2555424857 in words is "two billion, five hundred fifty-five million, four hundred twenty-four thousand, eight hundred fifty-seven".